How can i find the individual spec. sheets on the OEM equipment/packages on my 2002 Envoy?

Not exactly sure what specs you want but I would find the 2002 Envoy sales brochure online.

Believe it or not, the sales brochure was actually bundled in with the owner's manual & and OnStar Service sales pitch.... Im looking at a full upgrade on the sound system and OnStar hardware while keeping all the bells & whistles (steering wheel controls, warning chimes, ACC switching, ect) and incorporating newer features (touch screen, Bluetooth, video playback, rear view camera, Android compatibility). As well as bringing the OnStar system into the digital age. Basically, i have no clue what the ratings are on the OEM equipment. Until i can get the specs on tge equipment installed, i cant determine the tolerances or what can stay v. what must be replaced.

Good luck with that. I think you would have to be a genius electrical engineer with a lot of time and money to accomplish such a thing. A whole new system is your best bet. Try Crutchfield.

Well, let's call it a hobby Thanks for the response, all the same!

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