There is no gray wire with the standard system, so that tells me you have the Bose system with an amplifier.
Blue / white is switched 12 volts from the ignition switch to turn the radio on.
Blue / red is constant 12 volts for the station preset memory and clock.
The gray, and gray / black, wires goes to the amp, but the diagram does not say what their functions are.
Yellow / red is the turn-on signal for the power antenna.
The only red wire I see goes part way from the amp to the right rear speaker.
Orange and yellow wires go to the amp. I cannot say for sure, but if the circuits feed through the amp as the diagram suggests, these wires will go to the right door speaker after they leave the amp.
Pink and brown go to the amp, then appear to go to the left door speaker.
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Tuesday, June 21st, 2016 AT 12:31 AM