Getting ready to install a AVIC-X903BT. I have installed a few head units in the past but never with onstar. I have bought the PAC-OS3BOSE interface as I have the BOSE system. I also bought PAC SWI-PS to control the steering wheel controls.
I guess my questions are.
1. Does anyone know where I can find the wiring diagram? I found a couple however I have noticed there is a difference between the different audio systems.
2. Where is the onstar harness located? I have not taken anything apart to look but I am guessing its not behind the radio.
3. Where can I find a source close to the dash for my reverse gear wire?
Sorry if these questions have been asked a million times before. Going to keep looking on the site but I thought I would post up as well to see if someone could chime in and help me out.
Thanks in advance
I guess my questions are.
1. Does anyone know where I can find the wiring diagram? I found a couple however I have noticed there is a difference between the different audio systems.
2. Where is the onstar harness located? I have not taken anything apart to look but I am guessing its not behind the radio.
3. Where can I find a source close to the dash for my reverse gear wire?
Sorry if these questions have been asked a million times before. Going to keep looking on the site but I thought I would post up as well to see if someone could chime in and help me out.
Thanks in advance
