Pac Amplifier Interface For Specific ‘06 – ‘13 Gm Vehicles Without Bose

OEM-1 with a vehicle specific harness plugs into the vehicle's wiring and offers a 4 channel RCA audio output for adding aftermarket amplification. Provides full range audio output 20-20,000Hz; level is controlled by the volume of the factory radio. Plug in installation retains factory wiring integrity Linear 20-20,000Hz sound reproduction based on input signal 4 channel RCA output Amplifier turn-on trigger wire Transformer isolated for optimal sound and performance    Compatibility: 2012+ Avalanche, Sierra, Silverado Suburban, Tahoe & Yukon vehicles equipped with a navigation radio require the AA-GM44 Not compatible with premium factory amplified systems Warning chimes will sound through the front left RCA output