Find a place to plug in CoachProxy unit. You are plugging in a connector that can only be inserting one way. So don’t worry, find an open port and just plug it in. Suggested locations in order of preference:
Inside the passenger side console (beside the passenger captain’s chair)
Behind the refrigerator exterior access panel
Directly into the Spyder Controls House Panel (usually inside at the rear of the coach)
Directly into the Spyder Controls Chassis Panel (usually inside the front bay under the driver’s seat)
Wait about 2 minutes for CoachProxy to fully start up.