If I have a Mach 460, can I just swap out the HU for a Mach 1000 HU from say a wrecked car or ebay? If I read right the 1000 has a 6 disc in dash changer *and* will read mp3. I don't want to use an fm tuner as I don't have a good mp3 player and you lose sound quality somewhat doing that. Thanks in advance for any help.



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