Vince and Charlette - rascally is spot on. On my motorhome, I have a 7 pin trailer connector. On my toad, I used a 6 pin connector - for the brake lights, ground and turn lamps. I ran the 12v hot from the 7 pin to an unused pin on the toad. I ran that wire directly to the fused toad battery charge circuit I bought. Mine is sealed in rubber and has a replacement blade fuse - but they come in several variations. My Mini has no hot 12v accessory plugs when the car is off so I ran another hot lead through the firewall and added a 12v accessory plug up under the dash on the drivers side. Makes hooking up the RVI brake a breeze.
2008 Berkshire 360QS
with Mercedes Power
2010 Mini Cooper Convertible toad
2015 Nissan Frontier 4x4 pickup toad