Hi there, I remember you asked me if i had my problem fixed. Well I was only able to fix the part of the problem. The part where my radio fuse was blowing. There was a wire in the back that was coming out of the plug ( i think it was purple and white), so i cut that wire, and that helped with radio problems. However for a year i a have been keeping my dimmers at the lowest so it will not flash. I am guessing there is a short somewhere behind the dashes, whatever it is it's connected with gr/rt (grey and red) wire that's coming out of the light module and going to light switch, and i think it might bounce back to instrument clusters plug (X16) pin8. I will let you know my findings. But if you solve this problem before me let me know.

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2003 X5 4.6is
2001 530i