I just received word that <a href="http://www.pie.net">PIE</a> will shortly begin shipping an adapter to route external audio (from a walkman or mp3 jukebox) directly into the head unit via the CD changer cable. The first generation adapter will not allow the use of both a CD changer and an auxiliary unit. Not a perfect solution but given the choice between a six-disc CD changer or a 60 gig mp3 jukebox, personally I'd have no problem losing the CD changer.