After going over the service manual I realized the messages I'm interested are actually on a completely different bus called the CGI bus and it's not available through the OBD II port. I'm going to try removing my control panel and getting to it that way - just waiting for the connector and terminals to get here in the mail.
Hi, just got my CBT and have been learning quickly about Can and GMLAN. From what I've been able to glean it looks like my car model has a High Speed 2 wire Can Bus on pin 6 and 14 of the DLC and a single wire Low Speed Can on Pin 1.
The messages I'm primarily interested in are things like windows and radio controls which I believe are sent on the low speed Can Bus. Can I wire one of the buses to just Pin 1 or am I SOL?
Thanks a lot for any knowledge!