It has something to do with the way you have the reverse wire connected. Did you try connecting it to your reverse brake light bulb not the trailer wiring?
Hi Chris, I haven't tried connecting to the brake light wire, just the trailer wiring as you specified. I was hoping not to cut into any more of my factory wiring. but if you think this could be a route to my problem then i may have to. Could it also be possible that the lighter outlet isn't producing a clean enough signal? and the brake application distorts the output? i'm wondering if using my transformer or powering the monitor off the acc line (which is run off my hvac fuse like I discussed with you before), or even powering it with my M2 would help?