Theft lock Head Units.

rick quigley Silver Member Username: Quig Pittsburgh, Pa Us Post Number: 143 Registered: Sep-05	Posted on Tuesday, June 27, 2006 - 13:40 GMT What exactly does the theftlock Head units do, im getting redy to install a HU for my friend on his 2004 pontiac grand prix, any information would be nice, thanks.
ty mutlow Gold Member Username: Tjmutlow Post Number: 2443 Registered: Sep-05	Posted on Tuesday, June 27, 2006 - 20:07 GMT first off does this car have the moonsoon or bose sytem and does it have onstar. if so you need special harnesses to make these work.