I'm about to get an iPod Classic 120Gb with a PURE Avanti Flow speaker dock for my cottage holidays but I also want to use it in my Toyota Yaris via the aux socket. After days of research and experimenting and listening I had decided to rip my CD's to 128 AAC (VBR) rather than Apple Lossless. I listened and listened on my Mordaunt Short Genie 5.1 surround sound system and I can't tell any difference between the two and using 128 AAC I will be able to get my entire CD collection on there with plenty of room for future music purchases. Then I wondered if my car will recognise this format. I put some AAC files on a disc and the stereo in the car does not recognise them although it can play MP3's no problem. Does this mean that if I connect my iPod via the aux socket that it will not work unless I use an MP3 codec to rip my CD's? I cannot get the iPod for a few days and would love to get on and start putting my music into iTunes so any advice on this point would be very welcome.