Hey guys, my Volvo arrived with a factory camera attached to the bottom side of the boom arm. It's really nice to use when you dig deep but close to you. However the sensor was dead. I disassembled the unit and it was filled with dirt. I ordered a few 12v camera sensors from AliExpress. Not arrived yet. However I measured the voltage output on the harness while activated the camera and the voltage is about 7.9v. So I guess a universal sensor won't power on? Any recommendations of how to make a cheap common Chinese sensor work? Local dealer said that it could cost around 500€ and of course It's not an option. It 's a 4 wire sensor.