When replacing the OEM radio in select veihcles some features will be lost or not funtion. This radio data interface will retain those features and provide Nav outputs for multimedia radios. Will interface will retain the OE amplifier and work in non amplified models. Retains Onstar/ and OE Bluetooth. Excludes digital amplified models. Only for models that have the RSE controlled through the factory radio. Not for models that have an external power button at the RSE.
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