Hi im putting this on behalf of a friend. She has a polo 54 plate 1.2. Just recently her reverse lights have stopped working and wondered y? Ive done all the usual things checking bulbs and what not. A guy at volkswagen reckoned there a switch in the gear box that turns the reverse lights on, rechoned this could be the problem? if so has anyone else experienced this? if so how do u fix it? and is it easy to do?