Quote:
Originally posted by My Wife's Hummer:
i am trying to install the avic-d1. i am using pac audio os2 wiring harness. i have checked and rechecked my wiring. i plugged it all in last night, and nothing.
i know that i have to cross the three purple wires for the onstar to work. i haven't done that yet. will that keep the aftermarket unit from powering up?
i am wondering if my interface module is not working. anyone know?
thanks
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The purple wires also control RAP(retain accessory power)Thats why your unit isnt firing up.Make sure you disconnect the battery terminal first.