GM Navigation radio part numbers??
#1
GM Navigation radio part numbers??
I know this site that has all the great info on installing your own Nav radio, but I have been seeing these part numbers as a replacement for the 07 and 08 units with a 25797978 or 25834072. Can anyone confirm that these units are backwards compatable with 07 and also are the right numbers????
Thanks, Lyle
Thanks, Lyle
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