Help!!! I can't find a good ground!

[cmckelvy]

I installed the Avic D3 several months ago in my 04 A4 1.8t with Bose, and I have grounded this thing in 3 diff spots (all in diff spots below the rear seats) but I still get engine noise. Where is the best ground? It seems that each time I move the ground it's good to go for a while, but it always come back!!!

[kjr7888]

if you are talking about grounding the d3 itself ground it in the radio harness or somewhere closer... you are probably getting interference because your ground is wayyyyyyyy toooooo looooong...

[cmckelvy]

Ya, that must be it. Where behind the radio is a good spot?

[PCYC]

i used that metal bracket that it all mounts too