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Replace HU/RearAudio Questions

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I want to change the standard 6 disk cd headunit that came with my 05 Envoy with bose speakers and wonder will the rear audio controls continue to work.







The rear audio controls will only work with a Delphi / GM (class II databus controlled) headunit. I could not tell by your post if you want to put in an aftermarket headunit or replace a standard one with a Bose one. If you are wandering about a Bose headunit that will not work either unless you change the whole harness and add the Bose amplifier with a correct Bose headunit.. An aftermarket radio will power the rear speakers but the rear seat controls will have no control of operation.

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