Guys, remember this rule about the warrranty:
Anything you do to your car only voids the warranty if that part that you modified caused the problem. For example, if you have an aftermarket exhaust system on your car and your the motor for your power seat stops working, the motor will be fixed or replaced for free under warranty, because your exhaust system has nothing to do with it and does not void your warranty. When I had my Jetta, I modded it a lot and after a while, the overhead light console just stopped working properly. My local VW dealership replaced the light console completely free of charge under warranty, and they saw all the mods I had done to my car (17" wheels, exhaust system, air intake, etc.).