Seeing as how the dealers can change the bulbs for the turn signals does anyone know if it's possible for a dealer to do the following: I just bought a 2004 mazda3 hatchback, thinking it came with the xenon package which it didn't. I tried calling the dealer and asking them if it was possible to have the Xenon package, with or without the TPMS option, installed afterwards, like an accessory.... and it was like they had no idea what i was talking about... telling me that I wasn't gauranteed they'd fit and that they don't even know if it was possible that they sell them. Does anyone know if this switch is possible? The ones that come with it without xenons are bright but i want xenon's because my eyes are terrible especially in the rain... thanks for your help!