I'm selling my 89 Caravan and am putting in the stock radio and removing my
aftermarket stereo. The power plug/dimmer/ground is relatively intact, but
the speaker wiring harness was butchered by the previous installer. I
picked up a plug and harness from the wrecker that fits the stock
radio/cassette deck. Problem is that I have 8 speaker wires and the harness
has 6 wires. Of course there isn't a schematic on the radio anymore.
Although the plug I got fits, the wires on the plug do not exactly
correspond to the wires from the speakers. Does anyone have a radio and
harness sitting on a shop bench with schematic that can shed a little light
for me? I'm thinking that the rear share a common ground and the fronts
share a common ground. That would explain 6 wires. But i need to get those
wires connected to the radio.
Can a guy select, say right front on the radio settings, power up and check
the output of the wiring with a multi meter to see which wires to hook to
right front speaker? Do that for each speaker. Check amps/volts ?