When replacing the OEM radio with an aftermarket radio some features may be lost. This interface will retain those features and also provide Navigation outputs when adding an aftermarket Navigation radio. Works in amplified models . Will retain chimes and Onstar. this interface works in General Motors 2005-2006 with Bose audio. Retains balance and fade .Pre-wired ASWC-1 harness (ASWC-1 sold separately) .
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