I purchased a speaker box to drop in the back of my 95 ZJ, which has the
Infinity Gold CD stereo system, and was wondering if anyone could give me
advice on the best way to connect it to the existing amp.

I was thinking of just tapping into the rear speaker outputs but cannot find
any information on which those would be. The speakers have a 300W rating and
have no amp. I thought I would just ask before I start ripping stuff apart
(I don't know why, it never stopped me in the past!?)

Doug
95 ZJ 4.0L

 

Doug Jones wrote:

> I purchased a speaker box to drop in the back of my 95 ZJ, which has the
> Infinity Gold CD stereo system, and was wondering if anyone could give me
> advice on the best way to connect it to the existing amp.
>
> I was thinking of just tapping into the rear speaker outputs but cannot find
> any information on which those would be. The speakers have a 300W rating and
> have no amp. I thought I would just ask before I start ripping stuff apart
> (I don't know why, it never stopped me in the past!?)
>
> Doug
> 95 ZJ 4.0L

Kinda depends. You only mention one speaker box... is this
a sub or separate left and right speakers?

If you just replace the rear speakers, tap the wiring at the
output of the two connectors on the amp before they get to
the door in such a manner that the in door speakers are
disabled. Putting them in series tends to make it sound
worse than the worst speaker. Putting them in parallel
can overload the amp, and if the speakers are not
exact matches, result in no sound from the box or none
from the door [whichever is higher impedance and by
how much]. Worse, the answer may be different at
different frequencies so the sound wanders all over
the place.

Or if you add an amplifier, tap the high level input
to the amp.

Wiring diagrams are best in the Body Diagnostic manual,
a whole $6.00 from tech authority.

 

trust me, dont mess around with infinity systems, you will regret it
"Lon Stowell" <lon.stowell@comcast.net> wrote in message
news:TyKdnRsIKZPxi4KiU-KYvw@comcast.com...
> Doug Jones wrote:
>
> > I purchased a speaker box to drop in the back of my 95 ZJ, which has the
> > Infinity Gold CD stereo system, and was wondering if anyone could give
me
> > advice on the best way to connect it to the existing amp.
> >
> > I was thinking of just tapping into the rear speaker outputs but cannot
find
> > any information on which those would be. The speakers have a 300W rating
and
> > have no amp. I thought I would just ask before I start ripping stuff
apart
> > (I don't know why, it never stopped me in the past!?)
> >
> > Doug
> > 95 ZJ 4.0L
>
> Kinda depends. You only mention one speaker box... is this
> a sub or separate left and right speakers?
>
> If you just replace the rear speakers, tap the wiring at the
> output of the two connectors on the amp before they get to
> the door in such a manner that the in door speakers are
> disabled. Putting them in series tends to make it sound
> worse than the worst speaker. Putting them in parallel
> can overload the amp, and if the speakers are not
> exact matches, result in no sound from the box or none
> from the door [whichever is higher impedance and by
> how much]. Worse, the answer may be different at
> different frequencies so the sound wanders all over
> the place.
>
> Or if you add an amplifier, tap the high level input
> to the amp.
>
> Wiring diagrams are best in the Body Diagnostic manual,
> a whole $6.00 from tech authority.
>

 

I was afraid ya'll would say that. Money is the issue currently. I was
checking out www.crutchfield.com and they have some awesome stereo's
available. I am saving my pennies, though, because my wife needs a new
car --er - Jeep. We're going to look for another JGC, I believe.

> my site, check under the supercharger for pictures of the stereo

I really like the setup you have. You appear to enjoy a little thumping in
the back of your Jeep, too. It's been awhile since I replaced a car stereo.
How did you go about picking out the components to put together that hefty
system?

Doug
95 ZJ 4.0L


"DougW" <post.replies@invalid.address> wrote in message
news:aHGTa.63211$R92.49412@news2.central.***.net.. .
> Mike Taylor wrote:
> > trust me, dont mess around with infinity systems, you will regret it
>
> Best solution is to replace the whole thing. There are some ideas on
> my site, check under the supercharger for pictures of the stereo
> (yea I know it should be under stereo.. so kill me...)
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>

 

Yea, I bet it does rock your JGC. At first, when looking at the specs, I
thought that was a little overkill, then I came to my senses :)

Anyway, I figured out which wires run to the rear speakers (in case anyone
is interested it is the tan wires with the red and black stripe for the
right rear and the white wires with the red and black stripe for the left
rear) so I went ahead and hooked the speakers up by using wire connectors
that, when crimped, splice into both wires.

I am happy to note that so far I didn't blow up anything, and they sound
pretty darn good to boot! Meanwhile I will keep dreaming of amping up my
JGC. When I get ready to do some real mods I may email you with some
questions if you don't mind, though.

Doug
95 ZJ 4.0L


"DougW" <post.replies@invalid.address> wrote in message
news:wWHTa.64131$R92.40264@news2.central.***.net.. .
> Doug Jones wrote:
> > I was afraid ya'll would say that. Money is the issue currently. I was
> > checking out www.crutchfield.com and they have some awesome stereo's
> > available. I am saving my pennies, though, because my wife needs a new
> > car --er - Jeep. We're going to look for another JGC, I believe.
> >
> >> my site, check under the supercharger for pictures of the stereo
> >
> > I really like the setup you have. You appear to enjoy a little thumping
in
> > the back of your Jeep, too. It's been awhile since I replaced a car
stereo.
> > How did you go about picking out the components to put together that
hefty
> > system?
>
> Just a little, that's only a 10" Kicker Solobaric. :)
>
> Actually space dictated everything. The head unit was chosen because
> the CD changer it mated with fit in the center console. The amps were
> chosen because they were just the right size to fit under the rear seats
> with only minor trimming. The best part was all those components were
> very high Q (low noise). There are better head units out now and better
> amps, but this thing still can give modern installs a run for the money.
>
> --
> DougW
>
>

 

Listen,you need an additional amp with Hi/Lo inputs.
You tap into your rear speaker wires and run them into
the amp(hi inputs).

--
"Dont'cha love it when a plan comes together?"
David V. Nelson



"Doug Jones" <djones9716@wideopenwest.com> wrote in message
news:_ZKdnUT3qNzOsL6iXTWJgA@wideopenwest.com...
> Yea, I bet it does rock your JGC. At first, when looking at the specs, I
> thought that was a little overkill, then I came to my senses :)
>
> Anyway, I figured out which wires run to the rear speakers (in case anyone
> is interested it is the tan wires with the red and black stripe for the
> right rear and the white wires with the red and black stripe for the left
> rear) so I went ahead and hooked the speakers up by using wire connectors
> that, when crimped, splice into both wires.
>
> I am happy to note that so far I didn't blow up anything, and they sound
> pretty darn good to boot! Meanwhile I will keep dreaming of amping up my
> JGC. When I get ready to do some real mods I may email you with some
> questions if you don't mind, though.
>
> Doug
> 95 ZJ 4.0L
>
>
> "DougW" <post.replies@invalid.address> wrote in message
> news:wWHTa.64131$R92.40264@news2.central.***.net.. .
> > Doug Jones wrote:
> > > I was afraid ya'll would say that. Money is the issue currently. I was
> > > checking out www.crutchfield.com and they have some awesome stereo's
> > > available. I am saving my pennies, though, because my wife needs a new
> > > car --er - Jeep. We're going to look for another JGC, I believe.
> > >
> > >> my site, check under the supercharger for pictures of the stereo
> > >
> > > I really like the setup you have. You appear to enjoy a little
thumping
> in
> > > the back of your Jeep, too. It's been awhile since I replaced a car
> stereo.
> > > How did you go about picking out the components to put together that
> hefty
> > > system?
> >
> > Just a little, that's only a 10" Kicker Solobaric. :)
> >
> > Actually space dictated everything. The head unit was chosen because
> > the CD changer it mated with fit in the center console. The amps were
> > chosen because they were just the right size to fit under the rear seats
> > with only minor trimming. The best part was all those components were
> > very high Q (low noise). There are better head units out now and better
> > amps, but this thing still can give modern installs a run for the money.
> >
> > --
> > DougW
> >
> >
>
>

 

Thanks, I am sure I will check stuff out with some auto stereo stores when
I get serious because I plan on replacing everything and don't have a lot of
knowledge about properly matching stereos with amps and speakers (or did you
figure that out :) Thanks for permission to contact you with a few
questions, though, because I just don't trust everything sales people tell
you. It seems so difficult to find knowledgeable sales people anymore.
<sigh>

Doug
95 ZJ 4.0L



"DougW" <post.replies@invalid.address> wrote in message
news:rAJUa.82398$R92.31051@news2.central.***.net.. .
> Doug Jones wrote:
> > Yea, I bet it does rock your JGC. At first, when looking at the specs, I
> > thought that was a little overkill, then I came to my senses :)
>
> What I have is not that loud. It could be if the amps were turned to max
> but that would destroy the sound quality. I used to compete in what's
called
> SQ+ Or sound Quality Plus. You have to maintain both a high quality and
> high dB. That isn't easy. My level is 300W, but that is true power, not
RMS.
> Modern systems are much cleaner and get better efficiency.
>
> > Anyway, I figured out which wires run to the rear speakers (in case
anyone
> > is interested it is the tan wires with the red and black stripe for the
> > right rear and the white wires with the red and black stripe for the
left
> > rear) so I went ahead and hooked the speakers up by using wire
connectors
> > that, when crimped, splice into both wires.
> >
> > I am happy to note that so far I didn't blow up anything, and they sound
> > pretty darn good to boot! Meanwhile I will keep dreaming of amping up my
> > JGC. When I get ready to do some real mods I may email you with some
> > questions if you don't mind, though.
> >
> > Doug
> > 95 ZJ 4.0L
>
> Not a problem. I read the ZJ list serv
> http://lists.off-road.com/mailman/listinfo/zj-list
> and this forum. If you put DougW in the subject it highlights it for me.
>
> Or you can email @***.net with wilsond
>
> I suggest you visit the local sterio store that does IASCA competitions
> they will have all sorts of info. Make sure you choose one with a book
> of the vehicles they have made.
>
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.***.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>

 

Doug Jones wrote:
> Thanks, I am sure I will check stuff out with some auto stereo stores when
> I get serious because I plan on replacing everything and don't have a lot of
> knowledge about properly matching stereos with amps and speakers (or did you
> figure that out :) Thanks for permission to contact you with a few
> questions, though, because I just don't trust everything sales people tell
> you. It seems so difficult to find knowledgeable sales people anymore.

That's why you visit the custom audio shops.

It took a long time to figure out what parts to use. You might start by
reading the car audio magazines, lots of insane ideas.

Also consider sound deadening, this is where doing it yourself will save
big money. Google for deadmat or dynamat

--
DougW

 

You could be, yes. The amp is designed to put out 120 watts into
whatever the standard speaker impedance is. If you just replace
that speaker, is a fairly good idea to do so with one rated at
the same nominal impedance. If you parallel another speaker on,
the load on the amp doubles if the new speaker has the same
impedance as the original. This may cause things to pop or just
overheat which shortens lifetime.

Doug Jones wrote:

> Why? Am I risking blowing up my factory amp this way? Not that I am opposed
> to buying another amp, but I was wanting to wait until I could replace the
> stereo, too.
>
> Doug
> 95 ZJ 4.0L
>
>
> "David V.N." <rmcevoy1@twcny.rr.com> wrote in message
> news:BkUUa.130636$EQ5.125132@twister.nyroc.rr.com. ..
>> Listen,you need an additional amp with Hi/Lo inputs.
>> You tap into your rear speaker wires and run them into
>> the amp(hi inputs).
>>
>> --
>> "Dont'cha love it when a plan comes together?"
>> David V. Nelson
>>
>>
>>
>> "Doug Jones" <djones9716@wideopenwest.com> wrote in message
>> news:_ZKdnUT3qNzOsL6iXTWJgA@wideopenwest.com...
>> > Yea, I bet it does rock your JGC. At first, when looking at the specs, I
>> > thought that was a little overkill, then I came to my senses :)
>> >
>> > Anyway, I figured out which wires run to the rear speakers (in case
> anyone
>> > is interested it is the tan wires with the red and black stripe for the
>> > right rear and the white wires with the red and black stripe for the
> left
>> > rear) so I went ahead and hooked the speakers up by using wire
> connectors
>> > that, when crimped, splice into both wires.
>> >
>> > I am happy to note that so far I didn't blow up anything, and they sound
>> > pretty darn good to boot! Meanwhile I will keep dreaming of amping up my
>> > JGC. When I get ready to do some real mods I may email you with some
>> > questions if you don't mind, though.
>> >
>> > Doug
>> > 95 ZJ 4.0L
>> >
>> >
>> > "DougW" <post.replies@invalid.address> wrote in message
>> > news:wWHTa.64131$R92.40264@news2.central.***.net.. .
>> > > Doug Jones wrote:
>> > > > I was afraid ya'll would say that. Money is the issue currently. I
> was
>> > > > checking out www.crutchfield.com and they have some awesome stereo's
>> > > > available. I am saving my pennies, though, because my wife needs a
> new
>> > > > car --er - Jeep. We're going to look for another JGC, I believe.
>> > > >
>> > > >> my site, check under the supercharger for pictures of the stereo
>> > > >
>> > > > I really like the setup you have. You appear to enjoy a little
>> thumping
>> > in
>> > > > the back of your Jeep, too. It's been awhile since I replaced a car
>> > stereo.
>> > > > How did you go about picking out the components to put together that
>> > hefty
>> > > > system?
>> > >
>> > > Just a little, that's only a 10" Kicker Solobaric. :)
>> > >
>> > > Actually space dictated everything. The head unit was chosen because
>> > > the CD changer it mated with fit in the center console. The amps were
>> > > chosen because they were just the right size to fit under the rear
> seats
>> > > with only minor trimming. The best part was all those components were
>> > > very high Q (low noise). There are better head units out now and
> better
>> > > amps, but this thing still can give modern installs a run for the
> money.
>> > >
>> > > --
>> > > DougW
>> > >
>> > >
>> >
>> >
>>
>>
>
>

 

NO,NO,NO
the additional amplifier supplies power to your"box".
It uses a small amount of power as signal and it's isolated
from your head unit.It won't even "see" it.

--
"Dont'cha love it when a plan comes together?"
David V. Nelson



"Lon Stowell" <lon.stowell@comcast.net> wrote in message
news:dJucne1NVIFz3LmiXTWJhQ@comcast.com...
> You could be, yes. The amp is designed to put out 120 watts into
> whatever the standard speaker impedance is. If you just replace
> that speaker, is a fairly good idea to do so with one rated at
> the same nominal impedance. If you parallel another speaker on,
> the load on the amp doubles if the new speaker has the same
> impedance as the original. This may cause things to pop or just
> overheat which shortens lifetime.
>
> Doug Jones wrote:
>
> > Why? Am I risking blowing up my factory amp this way? Not that I am
opposed
> > to buying another amp, but I was wanting to wait until I could replace
the
> > stereo, too.
> >
> > Doug
> > 95 ZJ 4.0L
> >
> >
> > "David V.N." <rmcevoy1@twcny.rr.com> wrote in message
> > news:BkUUa.130636$EQ5.125132@twister.nyroc.rr.com. ..
> >> Listen,you need an additional amp with Hi/Lo inputs.
> >> You tap into your rear speaker wires and run them into
> >> the amp(hi inputs).
> >>
> >> --
> >> "Dont'cha love it when a plan comes together?"
> >> David V. Nelson
> >>
> >>
> >>
> >> "Doug Jones" <djones9716@wideopenwest.com> wrote in message
> >> news:_ZKdnUT3qNzOsL6iXTWJgA@wideopenwest.com...
> >> > Yea, I bet it does rock your JGC. At first, when looking at the
specs, I
> >> > thought that was a little overkill, then I came to my senses :)
> >> >
> >> > Anyway, I figured out which wires run to the rear speakers (in case
> > anyone
> >> > is interested it is the tan wires with the red and black stripe for
the
> >> > right rear and the white wires with the red and black stripe for the
> > left
> >> > rear) so I went ahead and hooked the speakers up by using wire
> > connectors
> >> > that, when crimped, splice into both wires.
> >> >
> >> > I am happy to note that so far I didn't blow up anything, and they
sound
> >> > pretty darn good to boot! Meanwhile I will keep dreaming of amping up
my
> >> > JGC. When I get ready to do some real mods I may email you with some
> >> > questions if you don't mind, though.
> >> >
> >> > Doug
> >> > 95 ZJ 4.0L
> >> >
> >> >
> >> > "DougW" <post.replies@invalid.address> wrote in message
> >> > news:wWHTa.64131$R92.40264@news2.central.***.net.. .
> >> > > Doug Jones wrote:
> >> > > > I was afraid ya'll would say that. Money is the issue currently.
I
> > was
> >> > > > checking out www.crutchfield.com and they have some awesome
stereo's
> >> > > > available. I am saving my pennies, though, because my wife needs
a
> > new
> >> > > > car --er - Jeep. We're going to look for another JGC, I believe.
> >> > > >
> >> > > >> my site, check under the supercharger for pictures of the stereo
> >> > > >
> >> > > > I really like the setup you have. You appear to enjoy a little
> >> thumping
> >> > in
> >> > > > the back of your Jeep, too. It's been awhile since I replaced a
car
> >> > stereo.
> >> > > > How did you go about picking out the components to put together
that
> >> > hefty
> >> > > > system?
> >> > >
> >> > > Just a little, that's only a 10" Kicker Solobaric. :)
> >> > >
> >> > > Actually space dictated everything. The head unit was chosen
because
> >> > > the CD changer it mated with fit in the center console. The amps
were
> >> > > chosen because they were just the right size to fit under the rear
> > seats
> >> > > with only minor trimming. The best part was all those components
were
> >> > > very high Q (low noise). There are better head units out now and
> > better
> >> > > amps, but this thing still can give modern installs a run for the
> > money.
> >> > >
> >> > > --
> >> > > DougW
> >> > >
> >> > >
> >> >
> >> >
> >>
> >>
> >
> >
>