Quote Originally Posted by WRCLVR View Post
If the Redarc brake controller adjustmet knob is a simple 2-3 wire rheostat, then maybe you can source a IP69 rated weather resistant one from Mouser or Digikey? Then wire it in on the dash in a convenient place

I reached out To REDARC to see if they have a weather resistant adjustment switch/knob suitable to mount on the dash for the Spyder. Lets see what they say...
It appears to be a rheostat with the added twist of having a push in knob to manually activate the trailer brakes.

I hope you will post he reply when you get it.