Welcome to the forum Tommo82. :welcome: I'm sure one of our gurus will be able to help you with your problem but if you do a search on diagrams there is a number of wiring diagrams to show the ways members have wired their setups.
You are a long way from everywhere at Tom Price but it is a great base from which to go exploring.
Welcome to the forum Tommo82. Glad you took the plunge and joined us. I'm sure someone who knows their way around van electricals will be able to help you.