UPFITTER ELECTRICAL NEWS
Aftermarket Trailer Brake Controller Harness… Please see UI Bulletin #109d for completed details on obtaining a harness for use when installing an Aftermarket Trailer Brake Controller.
Auxiliary Switches (RPO 9L7)… for more information please refer to Bulletin #110d.
For Rear Lighting Connections… for more information please refer to Bulletin #113
Commonly Used Electrical Connections/Circuits… If you’re looking for an Ignition HOT circuit or maybe you’re in need of a Vehicle Speed Signal…for these and other in cab signals please check out Bulletin #115.