split charge tow bar wiring

[jameslunt]

does anyone have any idea of where to connect a split charge system up onto a 406?

have just fitted a witter towbar i got off ebay to my '01 406 Hdi exec estate and already had the peugeot wiring loom to connect the lighting up directly to the car loom so that didnt require any cuting and soldering but as i have got the wiring for the split charge with the tow bar i may as well wire it in!

so any help would be greatfully recieved!