The pipe to the rear wash wipe on my 2006 A6 2.7TDI S line has leaked over the Bose amp & sat nav DVD system. The Audi dealers are telling me that it all needs replacing , at a cost of £2500 :sorry:. Does anyone know if the components can be repaired . If I do have to replace the system , would it be worth upgrading. I would at least want an I-pod connection.