Wires in roof??

Hello folks, I would be grateful for your advice. I’ve got a 2007 Freelander 2.
I need to put one of those Flettner roof extractors on for my working dogs, positioned over the boot space where the cages are.
The thing is, I have to cut a 95mm hole in the roof. Are there a million wires under there or is it relatively safe to go ahead?
Many thanks for any help.

Try posting in the Freelander section here:
https://www.landyzone.co.uk/forum/land-rover-freelander.9/
Better chance of a reply.