When splicing into the Factory Wiring, is the signal wire yellow on all the vehicles? (2000-2006 GMC Sierra / 2000-2006 Chevy Silverado)

When splicing into the factory wiring for trucks model year 2002-2005, you will connect the green signal wire to the yellow wire on the sensor. For 2006 model trucks, you will connect the green signal wire to the Orange/Black wire.