Power supply from front dome light

[DannyC]

Hi guys, apologies if this is something that's been answered before, but I've not been able to find anything when I've searched.

I'm after a wiring diagram for the front dome light, part number IKO 947 105, due to some issues I'm having tapping off power from there. Or more accurately, the power not dropping off when I lock the car when my power supply is connected.