it works on the cars we tried I wonder if it is a model year thing or just as I said it took me a lot of tries to get it b/c it wasnt close enough but the guy who showed this to me is an engeneer for motorolla and we first id it on his avalanche and it worke then on my z06 it worked too they are both GM cars so my wife drives an expedition and it worked on her car too.Originally Posted by SVTMuscle
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