[sft1st]

I talked to some folks at MASS Electronics 1-877-410-MASS they do all the work for GM in Canada or at least in Ontario. They tell me to find the harness remove the rear reading lamps assembly and you will see the connectors in the ceiling. (behind the driver first row of seats) If the pins are there then all you need is a jump connector to hook the unit up. My van is a 2007 Chev Uplander with a 'rail system'. (Info is based on this). Now all I need to fingure out is how to remove the cover over the reading lights without breaking it. If the hook up is not there then I can't use a factory DVD as it becomes more than a wiring issue, the computer brains of the vehicle are not set up for this to operate, apparently a $9000 issue. So next time buy a van with the option factory installed?. However MASS does sell a aftermarket, GM compliant system with a three year warrantee for $1200 installed.