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I have the common Audi A4 cabriolet radio wire problem causing no radio or satellite reception. I do not have navigation. The wires in the rubber sleeve or boot from the body to the trunk lid where the antenna is located are all broken at the trunk to body hinge point. I'm looking for a part diagram, part numbers, and a place to purchase replacement wires for a reasonable price. Alternatively, I'm looking for a part diagram and wire repair and/or wire splicing instructions.