I have a problem just happened last night.Cd changer stopped working,Power is there as it ejects cartdrige.There is a clicking noise in trunk on passenger side (opposite side of changer) that goes away when I turn on radio.Mode button doesn't work on radio,but radio works fine.Any ideas??????????????????

Dounds like a dying cd changer to me.

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2004 VW Touareg
2005.5 Audi A4
1997 Audi A4

But it's not the cd changer that is making the noise.Are there relays on passenger side in trunk?