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 when bypassing the factory amplifier. this interface works in General Motors 2005-2006. *NOTE* If the vehicle is amplified either use the GMOS-08 interface or bypass the amplifier. If bypassing the amplifier follow the _Axxess Interface Amp Bypass Schematic_ document.
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