I recently bought a 2012 GTI and when I bought it I knew it had issues (water pump, fuel injectors), but now that it runs I noticed that the passenger-side door speaker has an annoying rattle sound when playing loud music. I want some recommendations on how to re-mount the new speakers (because I have to drill our the factory rivets), and I want some recommendations on what brand speakers to replace them with especially if I want to add a sub latter.