I make the assumption that dealers and their service parts shops have on ocassions been requested to remove parts and eqipment from various models of cars to complete an upgrade (as opposed to the common replacement of a faulty item). Where does the non faulty swap-outs get sold? Alternatively are there 'breaker' shops in the south of England (with a good reputation for quality second hand stuff). I'm trying to avoid Ebay as the kit I'm after tends to only come from Eastern Block countries and their star rating tends to be less than 100%!!!!!