Download your music onto a USB stick and then you can download that onto the 20Gb hard drive in the car.
I believe the 20GB internal hard drive is part of the media XL pack only, so if you haven't got that then you won't have a hard drive. I bought a small (physical size) 32GB USB sticks for £8 and copied mp3 files onto that and plug it into usb port in Mini, works ok although moving between albums seems to be a bit of a pain (standard LCD screen).the internal hard drive doesn't come as standard, it has to be optioned. if you haven't got it then it wasn't added to the options list (or your dealer made an error!)
Buy one on Amazon or eBay. They're still selling them.Am looking into getting an iPod classic with 160GB space, and apparently they don't make them anymore?
Don't need it for anything other than music, so don't need the features that come with the other iPods, such as texting or whatever else.