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 non-amplified models or amplified models. Will retain chimes through the factory speakers and retain Onstar.this interface works in General Motors 2006-2012. Provides NAV outputs (parking brake, reverse, speed sense). Pre-wired ASWC-1 harness (ASWC-1 sold separately) . Retains OnStar/OE Bluetooth . Adjustable volume for chimes and OnStar. Retains satellite radio . Retains balance and fade.
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