And one thing to remember, don't know what UK spec cars are like, but here in Finland (and I suspect most of Europe outisde UK), the lights (side & dipped) are constantly on even when set to off. To see the little ceiling light the lights have to be physically turned on, i.e. the light switch has to be rotated to ON. This is the same for the fog lights and headlight washers, they also only work when the lights are set to ON. Easy to forget when your lights are constantly shining...
