06 GMC Sierra

You can try the inputs to the GMDL BP then to see if they work. If not you will probably have use the white and light blue wires in the light blue plug of the BCM for unlock and lock. They need a negative pulse.sparky

I am not familiar with the Viper line. The brown wire for the GMDL BP is only to activate the module for a remote start. It will disarm the trucks factgory alarm,which yours doesn't have, and bypass the Passlock II system. You need to hook it to the wire from your system that only goes to ground when the remote starter is activated. The only yellow wire you need to likely use for your alarm is the thick yellow wire for the starter. Use a digital volt meter to test if you aren't sure which one. It will show 12 volts only when you turn the key to the crank/start position. You will also need to hook the starter wire output from the remote start to the car side, not the key side, of this wire after you cut it to hook up a starter kill circuit.sparky