thirdwoody88 Posted February 21, 2008 Report Share Posted February 21, 2008 If I purchase an onstar and steering wheel interface for an 04 Impala, do I need any additional wiring to keep from having to cut and solder to factory plugs Quote Link to post Share on other sites
maddmike Posted February 22, 2008 Report Share Posted February 22, 2008 an onstar as in the factory system as far as i know you cant just add one that system is tied into all the vehicles wiring so i dont know about getting one of those and as for using the sterring wheel controls you need a device called the pac swi* the * represents the particular model for your car i would check their website Quote Link to post Share on other sites
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