Chrysler Repair: 99 Voyager stereo replacement, electric door locks, variable illumination


Question
QUESTION: Hello,  I am also having trouble installing a Pioneer stereo in my wife's '99 Voyager with 3.3 engine.  I finally used the wiring information found on this site, "installdr.com.  I still have 3 wires that are not connected.  The stereo will not even come on.  There is power on the red/white wire to which I used the red wire on the connector for the radio.  Everything else seems to work except the electric door locks hesitate.  I hooked the pink wire to lthe yellow and I used butt-connectors.  Hope you can help.  Thanks,  Gene Brown

ANSWER: Hi Gene,
The Chrysler radios generally don't have a ground wire in the radio plug harness so if the Pioneer has a ground wire in its set of wires that is looking for a 'home' I would be inclined to attach that one to a local grounding point under the dash, nearby, and then see if you have some 'action'. You will see a place where other black wires are gathered and bolted to a structural part.  Ground wires are usually black, or black/trace in color. Without such a ground point your radio won't work.
Roland

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QUESTION: The radio ground wire is attached to the braided ground wire for the car.

ANSWER: Did you verify that the 'braided' is actually grounded? The red/white should show 12v in the run and acc positions of the ignition switch. The only other 12v is on the pink wire and that is there all the time to maintain the presets. The orange wire is for the variable illumination levels. If you have the fancy 'name brand speaker' set-up then you need a wire to the nbs relay for that set up. How many plugs with what number of wires are there in you Chrysler set-up? What are the purposes of the three wires that are left over on your Pioneer?
Roland


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QUESTION: In all of my 70 years, I have never had this much touble changing out a radio.  I used all of the wires that came with the Pioneer radio hook-up.  The Chrysler wires that I have left, with no where to put them is 2 yellow/black stripe that wires were ties together in the Chrysler connector, an oraange wire and a red/green stripe wire.  I just checked the fuse inside the car and it is good.  Where is fuse #28 you spoke of previously?  I looked under the hood and they are not numbered.  This is getting rediculous.  Thank you,  Gene Brown

Answer
Hi Gene,
The yellow/black is for the 'step dim switch signal' on the headllamp switch but I can't find it on the light diagrams as to what it does specifically but I doubt is has anything to do with your non-function. The orange is the variable brightness voltage for the display.
There is a red/dark green wire on a 2-wire plug that is lt gray in color and that is supposed to go to the amplifier(+) which is part of the nbs set up. On the other hand, a dark green/red on that plug goes to the nbs relay if you have one, while a dark green/red on pin 1 of the 7-wire black plug also goes to that relay. So you might want to differentiate which is the base color and which is the trace color on that wire.
My diagrams don't show all the details of the nbs system, apparently. Do you have any idea of what sort of Chrysler radio you had in there? And what about the 12v on the red/white, and the grounding of the braided wire...verified?
The 28 fuse is at the very rear of the box, behind the ASD relay. I am working with a '98 manual but I believe it is the same as the '99.
Roland
PS: If you have the nbs system you should have an nbs relay in the fuse box under the dash. Also, the Chrysler system was connected to the digital data communication system for purpose of controlling the radio from the steering wheel for the patient presets and volume controls, which I wonder is part of the Pioneer? The wires for that are white/black and violet/brown on their own plug. I can understand your frustration...perhaps the setup requires a Chrysler radio to operate properly?