old fogey
New Member
Having just purchased an older s class, have started to fix the faults. Sorted sat nav continually wanting disk, cd player not reading discs. Giving the telephone a miss at the moment I come to the tv tuner. Screen says no tv, rear monitor is not responsive either. Checked tuner in boot fuse okay and checked all wires plugged in. Now I have a suitable cable for its aux socket on the tuner, which firstly I can see if it displays video on either screen. The concern is can this do any harm and is there any where else I can start to troubleshoot.