posted this on q7 issues but may get help here yday 2007 q7 came to a complete stop in the middle of intersection, had it towed to audi dealer and they told me wire harness got tangled in the drive shaft, almost everything needs replacing-ridiculous money anyone ever hear of such a thing. Just doesn't sound right that a wire harness for a car can simply fall on to drive shaft and they told me I must have hit a rock for this to happen.. Any advice??