This is a combination of issues, I think. At least a combination of symptoms.
With the 2000 D2, I have an aftermarket head unit (bought that way) and it appears the subwoofer in the rear door is missing. I have audio from the front speakers without any problem. However, the rear speakers only produce the hum we all know that is tied to a ground fault (you know, the one that changes with engine RPM). Sometimes it's there, sometimes it isn't. Regardless of hum, the rear speakers never produce audio output from the head unit.
I have tinkered with all audio settings. No change.
I assume there's a loose connection between the head unit and rear speakers. Sounds like it was never connected at all and the wires are hitting something every now and again that allow that hum to happen.
Where to start tearing this thing apart and troubleshooting? I am very nervous about pulling panels. Brittle plastic scares me. I'd love to pull it all and do a complete rewire with a stock D2 head unit or one that will keep bluetooth/carplay capabilities without looking so out of place in the dash.
With the 2000 D2, I have an aftermarket head unit (bought that way) and it appears the subwoofer in the rear door is missing. I have audio from the front speakers without any problem. However, the rear speakers only produce the hum we all know that is tied to a ground fault (you know, the one that changes with engine RPM). Sometimes it's there, sometimes it isn't. Regardless of hum, the rear speakers never produce audio output from the head unit.
I have tinkered with all audio settings. No change.
I assume there's a loose connection between the head unit and rear speakers. Sounds like it was never connected at all and the wires are hitting something every now and again that allow that hum to happen.
Where to start tearing this thing apart and troubleshooting? I am very nervous about pulling panels. Brittle plastic scares me. I'd love to pull it all and do a complete rewire with a stock D2 head unit or one that will keep bluetooth/carplay capabilities without looking so out of place in the dash.