Incar Audio Systems

I have an mp3 player that I’d like to hook up to my Mazda 6 audio system. I’ve tried an fm transmitter, but it is TERRIBLE quality. I know that it is possible to buy an aftermarket mp3 input to hook up an mp3 player, but I don’t want to buy it from Mazda since it is so expensive. Does anyone know where to find a reasonably priced one? Thanks so much!

My parents are suppose to be getting the ‘10 Scion tC. I was trying to get all the background stuff on it first.
Can I play my iPhone over the audio system?
What about the steering wheel audio controls, do those work too?

Thanks in advance! :))
Does he have the 2010?
I know that it plays, because I tested at the dealership, but I was SO amazed by the sound, I forgot to check for the charging!

I have a 95 Buick Century and im trying to put a booming system in it but i know nothing about car audio so i dont really know what im trying to get, but i want the most bang for my buck. Im really only trying to spend ,000 or less so plz help =) ty

Again, this is a 2008 mustang, purchased used. The problem is with the factory in dash audio system, its a shaker 500. When trying to load or activate the cd system, it displays the following : INITIALIZING. I do not have the warranty on the vehicle any longer. What according to you guys can be the problem and also, how can it be fixed. PLEASE HELP.
Any further information needed please let me know.

I bought a audio system for my car back in December and need to sell it but don’t know how much it is worth used. The system includes: Two Rockford Fosgate Punches 10"s(Retail 0 a piece), Xplod Amp(not sure which model but bought for 0), and a Xplod head unit that was bought for 0. Everything was new when bought so only 6-7 months old. Any help would be appreciated. Thanks