I was just doing some looking around, looks like there's an interface module out already. It interfaces with the OBDII port, I remember starting to see some like this back in the day when I was still installing.
Programmable Platform#07:CAN Bus High Speed Interface
XpressKit.com - Compatibility Chart
Looks like I'll be installing one of these in the next couple months, should be a fun refresher
Might go with the new
Clifford Matrix 50.7X or
Viper 5901, can't remember which I have access too.