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Has anyone ever had any experience with this wireless trailer brake controller? It plugs into the OBDII plug under the dash & monitors all vehicle systems before applying the trailer brakes. I don't want to open Pandora's Box by splicing wires just for a 7 pin RV trailer plug. My trailer is less than 2,000 lbs, but it does have brakes & I would not feel safe with a 6X12 trailer without brakes, regardless of how light it is loaded.