Hi @ostberry, my understanding is that you are not allowed to hard-wire aftermarket accessories to your Motability vehicle, even if they are fitted by the dealer. Only factory options are allowed.
However, what constitutes “hard-wiring” is a bit of a grey area, and I know many on here tap into a fuse or power supply to rear-view mirror for their dash cam 😉
Sean
Current car Hyundai Kona Ultimate EV