The unit has its own interior back-up power just in case the key vehicle battery is disconnected in the course of theft or maintenance. If we were being fitting it completely, we would've chosen a tougher-to-reach area. This progressive anti-theft machine locks each the steering wheel and seatbelt together for https://www.trackerfit.co.uk/blog/rising-concerns-over-keyless-car-theft-devices-how-trackerfit-can-help/