BX-GM4 Table of Contents GM Class-2 Data Interface 2000-2013
BX-GM4 3 Connections to be made The following wires are for the aftermarket radios that have navigation built in: • Connect the Green/Purple wire to the reverse wire (if applicable). • Connect the Light Green wire to the parking brake wire (if applicable). • Connect the Blue/Pink wire to the speed sense (V.S.S) wire (if applicable). Note: Some models do not have speed sense on the data-bus.