I have a 2006 A4 Cabriolet with a glitch in the windshield washer system. I took it in the shop for other repairs they the tech said it needed a new pump for $XX. Convinced I could change it out myself cheaper (which I did), my problem was not solved. I hooked up power to the pump motor directly and the pump worked fine. I have power to the fuse but there is a electrical break somewhere between the fuse and pump. Anyone know of a common issue that could be easily repaired?.