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Where to Tap Into Reverse Light Circuit to Install Trailer Connector Adapter with Backup Alarm  


I have a 1999 dodge Ram 2500 diesel truck you do know if there is a backup lights power some where to hook up the back up horn yellow wire too. Or what do I need?


Expert Reply:

To wire in the reverse light wire on Curt 7-Way connector # C57102 for the back up alarm to work you will need to tap into a reverse light wire behind a reverse light on your 1999 Dodge Ram.

If you do not wish to tap into the wire there then you can trace the harness to a more accessible location. Then use a circuit tester such as # PTW2991, to find the correct wire before tapping into it. Be sure that the white ground wire on the 7-Way is attached to the truck frame. Otherwise the harness will not function.

I have also linked a video that might help you.

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