I ran across your question while looking for the Wiring diagram for my KD-LX30 Kameleon. I gave it to my son, but he lost the installation instructions. I find JVC provides poor support, since they had no installation instruction downloads, nor service manuals, on their sites. I finally found it, and hope it can still be helpful:
Red - hot(positive) to an accessory connection(so it cuts power when you park)
Yellow - to a constant battery connection
Black - ground
Blue - used only if you have an amplifier or power antenna to activate them.
Speakers:
Purple wires - Right Rear. The black striped ones go to the - speaker terminal.
Green wires - Left Rear.
Gray - Right Front
White - Left Front
BTW To download an owner's manual for your unit, go to the following site & find your model. Download & print(free). It covers troubleshooting, functions, etc(but doesn't include the wiring codes.
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