either grounded that wire thinking it was a ground or you have left it loose and its flopping around grounding, each time it grounds the dash lights will go out... Its intended to go to the light on the radio so that that light is dimmable just like all the rest of the dash lights.
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QUOTE=ShawnSki23]I just replaced the head unit on my 525i. When i started the car and turned on the lights, i noticed that i had no dash lights at all. When i turn the lights on, they flicker really quick then nothing. Checked all the fuses under the hood. All good. Any ideas would be much appreciated. Thanx[/QUOTE]