Gude, I have the following equipment (I know is not the best, but it’s enough for me): Sony MEX BT 3700 U Black Magic Amp SX 7002 Plus nail new fuse of Hama and fuse holder from ATU. 28cm2 cables The boxes do less to make a contribution to solving the problem. I have connected everything as usual today, had the equipment also in my old car, fuse in front of the battery, power cable to B+, remote to the radio, body to blank and ground to it. I got ignition on, radio in, power stage does not work. I thought maybe the remote cable is through or the mass point is Knortz. I have an Opel Omega B and have installed the cable to a screw behind the accident kit, where is near the tank cover, but I’m not sure whether this is a useful contact point. Power cable is connected to remote, end stage is not working again. Then I have fun to have already connected the power cable to B+ and remote. Now that is unexplained by me, but it’s an improbly light and protection too. I have used the same thing.