Hi
I have this X5 I jost got and I am trying to fix the few issues I have... I am refering now to my audio system. This is a premium pkg car and I have NAV, DSP, Assist, etc.
My entire left side does not sound almost at all even when I move Balance to left only and vol to MAX. I have very little sound comming of speakers with some grinding noise. Also keeping in the same settings, when I turn the system off I can hear a prolong echo. It sounds like from a dome.

Any help will be apreciated.

Thank You,
Al