1996 Jeep Grand Cherokee w/Infinity

esmith69

i checked throughoughly over the rear connections, and was able to find no GREEN/ black wire.  The only GREEN/ black was on the wiring harness I purchased for the install.  I have the ground from the Pioneer running through a male spade, and inserted that into the female ground port coming from the factory wiring bundle.  Also, the blue "power antenna" wire is running into the Pioneer's blue/white amplifier remote.  With the application of the spade into the stock ground, I can now get very grainy sound only at top volume, but nothing can really be discerned.  The only two wires left run into a small plastic connecter, attaching to two prongs in a recessed port on the factory face.  The two wires are a WHITE/ black and a solid purple.  The harness I have does have WHITE/ black and solid purple wires, which has them labeled as WHITE/ black being the left front negative, and the purple being the right rear positive.  The harness is a scosche CR01.  Could the WHITE/ black wires coming from the harness be run into the separate small separate connecter, instead of into the factory converters.  I have tried splicing the wires coming from the two-wire connecter with the WHITE/ black and purple coming from teh harness, and the ones from the cd player, but to no effect.  Also, this might help...when I combined the two wires from the connector together, I short-circuited all of my gauges, power windows, and the like.  However, when I separated them, everything went back to normal.  Would running the WHITE/ black and purple of the pioneer into those two separate wires and bypassing the harness completely on those two sound like a pausible solution?  Or perhaps splicing those two wires into the harness and then running it to the cd player?  The only other thing I can thing is making entirely new connections, and the idea is not very appealing.  Any further help will be greatly appreciated.

Michael Deegan

Almost always when I install aftermarket head units in the Chrysler vehicles with Infinity sound systems, I just use the same standard Chrylser wiring harness (consisting of a black rectangular plug and a grey rectangular plug) and hook everything up as if it were a normal sound system in the vehicle and just plug the harness into the factory wiring.  I just always make sure that the wiring harness' blue wire is hooked up to the aftermarket head unit's amp remote wire.  You do not usually need a converter unless you plan on turning the head unit up to near it's maximum volume.  The factory infinity amps use a high-level signal for their input and that's why you can hook up all the aftermarket head unit's speaker wires and it will be able to use those as the input.

I couldn't tell if this is what you were using or if you were also trying to use a premium system converter, but if you were trying to use such a converter I'd try to eliminate that from the wiring and see if everything then works properly.  As long as you have the right wiring harness adapter, all the connections will be a piece of cake because it's just matching up the wires of the pioneer harness with the wires in the grey and black plugs that make up the Chrysler wiring harness adapter. Do all of these connections first, then test it out and see if it works.  Only then should you consider messing with any unused factory wires that were left over.

The pioneer harness should have the following wires in it:

yellow/black: cell phone mute....do NOT hook this wire up to anything

yellow:  +12 volts constant/memory -> yellow wire in Chrysler wiring harness adapter

red: +12 volts switched -> red wire in Chrysler wiring harness adapter

ORANGE / white:  this from crutchfield:  This unit is equipped with a wire that Pioneer calls an illumination lead, however, it acts as a dimmer lead. When the illumination wire of this unit receives power and the dimmer feature has been turned on, the display will dim to a preset level. When the power and constant wires are connected and the illumination wire is supplied with voltage (when you turn your lights on), the button illumination remains on even if the unit is turned off completely."  I recommend you do not hook up this wire to anything, and just tape it off.

black: ground  ->braided metal grounding strap

blue/white: amp remote wire-> chrysler harness adapter (black plug) solid blue wire (labeled as "power antenna")

All 8 speaker wires have to all be hooked up to the corresponding wires of the Chrysler harness adapter.  the front left negative and front right negative wires are in the grey plug of the harness, and the remaining 6 speaker wires are in the black plug.

white:  left front positive

WHITE/ black:  left front negative

grey:  right front positive

grey/black:  right front negative

green: left rear positive

GREEN/ black: left rear negative

purple: right rear positive

PURPLE / black: right rear negative

Most likely it is just a small thing that you might have accidentally overlooked.  Did you hook up the GREEN/ black wire to a ground connection?  Are all of the head unit's speaker output wires properly connected to a Chrysler 70-1817 type harness?  And is the wire labeled "power antenna" hooked up to the alpine's amp remote wire?

Just as Chris Luongo recommended to myownid21, you should probably try to plug the factory radio back in to make sure that you get sound with it connected.  If not, then probably a fuse to the infinity amp was accidently blown at some point during the installation process.

Okay,

    I have ran over all the connections again.  The power antenna to the amp remote, cd player ground to ground from infinity amp (black female plug), and all other connections running to the wiring harness.  However, I still cannot get anything from the speakers.  I am using a pair of Cerwin 12s and a pioneer amp, and they run fine, bass response is excellent, but still nothing from the speakers.  I have tried grounding the GREEN/ black wire with a separate ground wire, grounding the Infinity ground and new cd player ground separately, grounding them together using a spliced in ground, tried running the acc wire (red) into the amp remote with the memory (because someone mentioned that the aftermarket cd player might not be getting enough power to run the amp/speakers, and needed help?), but I still cannot get anything.  I have tried asking local at the local car stereo shop (they are the only one in town), but they keep telling me that it should be running fine.  Is there anything that I am missing?  Is there any way to find out if the factory amp is grounded?  Because time and time again, whenever I put back in the factory stereo, everything runs fine.  It is only when I put in the new face that the problems begin?  The guys at our stereo shop did not seem to interested in doing an install, and I am running out of ideas?  HELP!!!