Really struggling with my 2016 Alhambra. Have just fit a towbar and now moved on to the electrics. I have a universal 13 pin kit which has been easy enough to fit but I have come unstuck with the voltage switching relay. The kit requires a permanent 12v feed and I have spent over an hour trying to find a way through the bulkhead to connect directly to the battery but have had no luck as yet. Does anyone know of the simplest path through? I did notice that the fusebox in the boot area is supplied by a fairly heavy gauge cable, would it be safe to take a live from this if there is no way through the bulkhead (bearing in mind that it will need to run the caravan fridge and battery charger during towing) or is the current to this box moitored?