We’ve had our BH 3400 for a few months now and have put it through the ringer, already have 4,000+ miles on it. Two mods I’ve made for the electrical system are simple holes. I moved the bedroom TV to the top cabinet so we could see it better, drilled a 1 ½ “ hole in the back of the upper cabinet and ran the electrical and cable wires to the receptacles in the center cabinet. While I had the hole saw out I drilled another hole in back left corner of the desk. I thought there should be a 110v outlet near the cable and 12v receptacles on the side wall but instead I drilled a hole so the wires would pass through to the 110v on the outside wall under the desk. I went to Lows and bought the plastic hole covers that you would see in a computer desk, both look good. Have Trailer Will Travel. 
