You buy your USED car at a one-make auto dealership, LETS SAY A MAZDA STORE, and the car you buy is NOT A MAZDA.

Key words, there.

You need a factory, dealer only part.

Who do you call?

A. The dealer that sells the brand of car you bought

B. The dealer you bought your non-brand-that-sell car from

C. TEH INTARNETS