I picked up this concorde last week and am in need of a good wiring diagram. The PO installed an aftermarket stereo and front door speakers that are having problems.
Constant buzz from left front door speaker. Nothing from right front door speaker, right rear, or either tweeter that I can tell.
Stereo is a cheap Pioneer DEH-X2710UI. Door speakers unknown as I haven't pulled panels yet.
Adaptor wiring harness was used so factory plug is still in place.
Found the owners manual on line which indicates a blue / white wire from the stereo is "Connect to the system control terminal of the power amp or auto-antenna relay control terminal (max. 300mA 12VDC)". I'm guessing an amp for this car since the antenna is in the back glass and since I get no sound if I disconnect it. Even the buzz in the left front goes away. I would like to know rather than guessing.
The wire that the blue / white one connects to in the cars mating plug is green with either a dark red or brown stripe. All of the wiring diagrams I can find on-line do not show this particular wire.
http://stereowiringdiagram.info/2002-chrysler-concorde/http://www.modifiedlife.com/2002-chrysler-concorde-car-audio-wiring-schematic/http://www.installdr.com/Harnesses/DCP-Wiring.pdfAny help or ideas are greatly appreciated. I'll be pulling the door panels next to see if the positive of that left front is grounded.
Update: Thankfully didn't have to pull door panels, just speaker grills. Buzz in in left tweeter too. No grounded wiring. I'm thinking the factory amp is blown. Guess I check into that next.
