Keep your OEM wiring intact and take the guesswork out of identifying appropriate speaker wires with the Audio Integration T-Harness for Select Buick, Cadillac, Chevrolet, and GMC Vehicles by PAC. The LPHGM51 provides speaker leads, 12V, and ground inputs for adding aftermarket audio equipment to factory non-amplified audio systems. This T-harness can be used with any line output converter, amplifier, or digital signal processor (DSP). | Pac | | Audio Integration T-Harness for Select Buick, Cadillac, Chevrolet, and GMC Vehicles | Best Buy