Hi, I firstly disconnected the battery.
Cut the tow bar electric's off at plug on tow bar.
Then I removed passenger tail light and inner panel and pulled it back into vehicle.
I then spent time insulating every wire end with shrink wrap and insulating tape, capped and insulated the loom. I left about 20cm of original tow bar loom as it was a lot better to work with. I then secured the tow bar loom to the main loom. Removed relay and fuse under passenger twin seat.
Reconnected the battery everything works perfect.
Remember you have to fit a crash pad or collision bar were the tow bar was fitted to support bumper and safety. check on here someone will tell you, something to do will rear seats.
Split charge system I would bite the bullet and get a professional to fit a new system. Even if you are intending to change front seat to a single.