Hi together, now I also have an Omega and it also poses a few problems: I bought it with defective speedometer and warning lamp TC and ABS, I know the problem a bit, for that was the price o.k. alternator delivers only 13,6 V so I check the mass connections, then the LIMA itself, then the ABS control unit, the ABS sensors and the speed sensor on the transmission. If a different order thinks to be more useful please post. oblem just showed up, after the radio-with nav-installation everything was just as before. I had put it only temporarily in the shaft, since no tacho signal etc.. My wife then slipped the radio while pressing on it further in and a fuse flew, I replaced the fuse after I pulled out the radio a piece, the fuse flew again, I rebuilt the radio, checked all cables on ground contact, put in a fuse again, but it held the he temperature and tank display are on 0, board computer, air conditioning lights and no longer work even though now all fuses are in there????? Does there have an idea for me? I don’t know which relay is responsible for what, because unfortunately I don’t have any operating instructions. I checked the fuses under the steering wheel and in the engine compartment next to the battery. Thank you first, Adam