[A4] Squeaking brakes

[gsackerson at comcast.net]

My brakes on my '06 A4 have begun to squeak in recent months when I apply the brakes. Has anyone else experienced that in recent model year Audi's? The service desk suggested just taking a car wash spray hose and spraying in the area of the brake caliper and rotor, but that doesn't eliminate the problem long term. I don't drive on dusty roads, so I don't have the contamination that might come from that source. Any ideas or remedies you've found that work? Thanks in advance for your feedback/input.

Glenn