Buying used 04 Mazda 3 with broken factory stereo. I looked at getting replacement factory OEM stereo from hifisoundconnection.com ($100) and when I looked there was a warning saying to make sure that one selected will work with my car because they don't do returns. My question......can I not just replace it with any other radio from another 04 Mazda 3? If I can then can I change out a single cd player with one that has multi disk and it work ok? Also does Mazda have to reprogram stereo when you install new factory stereo? Thanks!

 

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