Hi all. I’ve got this facelift e39 m5 which the head unit works fine however the radio or any sound doesn’t work. The red light next to the power/volume knob never lights up. I’ve tried swapping the amp with another one I have lying around but it didn’t change anything. This spare amp also might be broken? Or is there something I’m missing. Please help.
Lachiep
Hi all. I’ve got this facelift e39 m5 which the head unit works fine however the radio or any sound doesn’t work. The red light next to the power/volume knob never lights up. I’ve tried swapping the amp with another one I have lying around but it didn’t change anything. This spare amp also might be broken? Or is there something I’m missing. Please help.
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