BMW MOST BUS DIAGNOSTICS AND REPAIR, E90 EXAMPLE

HERE I will show you how to properly diagnose bad MOST bus unit and successfully bypass it! Standard problem-no sound, bmw dealer diagnosed bad amp and wanted 1900$!! All was fixed in 5 minutes under 30$. Bad unit turned out to be sat tuner module, which was bypassed. If you don’t listen to xm radio you don’t need the unit, if you do - buy another xm unit. https://www.bavlogic.com/?p=3729 fiber optic bypass loop jumper: https://amzn.to/3HrYwuh