Mach 460 and windshield wipers do not work.
Bought this 2003 GT yesterday. Has a Mach 460, but previous owner had after market stereo in it and appears to have not cared too much on factory stereo going back in. I checked all the fuses and relays, they are fine, even jumped the relay and the motor worked, swapped all the relays around and still nothing. I have read that the Mach 460 and wipers share a ground, where is that ground? Any ideas on how to further trouble shoot this?