Hi Abbey Owner
Looking at your signature I see that your caravan is an Abbey Vogue2 495 which was a relatively late model and one of the last produced by Abbey.
From what I remember the 495 already had a Status 550 aerial fitted with the base of the aeral inside the wardrobe, was your aerial missing?
I don't quite know how to put this tactfully but I'm sorry to have to say that if you cut a hole in the roof of your caravan without either knowing or finding out where the 12v lighting wiring was routed and have now cut through the wiring it may be a good idea to seek professional help before going any further with the possibility of more damage.
Why not get in touch with an Approved Mobile Service Engineer?
Click Here for a list of contact details.
If you don't join the 12v wiring correctly there is the very real possibility of a fire so a mobile engineer would be less expensive (and safer) in the long run