Metra - Axxess ADBOX Data Interface Harness for Select Vehicles - Multicolor

Compatible with most GM vehicles; connects factory speaker wires to aftermarket speakers

When used with an AX-ADBOX1 or AX-ADBOX2 control box (not included), this Metra Axxess ADBOX AX-ADGM03 data interface harness enables you to retain select factory features in your compatible vehicle.