k, so what does NG, BM53 and BM54 stand for? At this point its either a coin toss to see if someone on the 5 and X boards is willing to maybe just swap decks w/ me if they never plan on adding aux input, or just go aftermarket and be done w/ factory stuff just like I have in every other BMW I have/had. What year specifically do I need a stereo from, or what model # ranges? I though I was good to go w/ my own deck since it has software version 50, but I guess I'm just stuck going another route Also, what years specifically were capable of playing MP3's? This sucks...i still want to see if there is a way around this, but I'm getting impatient also. This is the second trip to Seattle i'll be taking...and I'm stuck w/ old cd's or crappy stations in the meantime.

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