Hi,
I need a little more info. Do you have a plug for the trailer already and simply want to add backup lights?
If you look at the schematic below, it shows the backup lights. You need to splice into the red wire with a white tracer. That will give you power, but not ground. That's where I need to know what you already have done or what you plan.
Here is a link you may find helpful when working with the wiring:
https://www.2carpros.com/articles/how-to-check-wiring
Let me know if this helps. Also, let me know if you have questions.
Take care,
Joe
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Sunday, August 15th, 2021 AT 9:49 PM