Demountable camper group

I'm looking to replace the central vent in my camper - the one above the kitchen/fridge - with a midi heki. The question is, where does the wiring run from/to for the central overhead light? I will need to make the hole bigger to fit the heki and don't want to inadvertantly cut through the wiring.

A; Don't know
B; That light is pretty pointless does it matter

I Would guess its fed from (Fridge) side as thats where all the other wiring emanates

TBH if you do damage the wiring it's not such a bother to put right.

rubberrat wrote:TBH if you do damage the wiring it's not such a bother to put right.

Very true, but would rather avoid it if possible.