2003 GM Radio Harness info

Well I was having problems with my stock harness and while checking the wiring out I loss track of where two of the wires came from.

All the speaker wires are correct it is a black and grey wire
which was between the 4 speaker wires and the orange power wire.

zDoes anyone have the pin out for the Stock GM Radio harness

Thanks

Dave

it is the ground and the anntenna wire

Thanks for the help

But I need to find out what location in the 24 pin connector the wires belong. aka Pin Out for the 24 pin harness.

why didnt you just buy an aftermarket harness