It ok thanks sorted the problem, took 12v supply from just start post under bonnet and used a smart relay (as used in Caravans for the fridge etc), this relay turns the lights on when the battery is being charged approx 13V cost £10 ;)
I'm putting DRL on my X1 but having trouble finding a switch live under the bonnet and trying to get to the fuse box is proving to be difficult can you point me in the right direction.