Tach together, with our MAN the boron socket, i.e. the cigarette lighter, has no power any more. I think it’s an L2000. Year 2001, so for a truck almost an oldtimer With the newer MANs is probably a voltage converter installed, which locks at short circuit. There it helps to pull the fuse, wait, and plug in again. Or the fuse is just through. Problem is, in the board manual stands, that there are many great fuse boxes, and that the occupancy on the lid is located. Nice. But where to find the boxes, nothing. In addition, it is a fire brigade vehicle. So up to the top stuffed with fixtures. Who can tell me where to find the appropriate fuses? Greeting Ben