What iPod do you have? If you get a new one how much storage do you need? 4th gen, 20GB. It's more than enough storage but horrible reliability. I could do well with 4GB of storage, as long as it will play without hiccups. The HDD ones are prone to failure. Especially one that old. I had a 5th gen and the logic board went out so I sold it for parts and got a 160GB. If all you need is 4GB I'd just get a flash based nano. I had an iPod touch and it didn't play nicely with my Alpine or Pio HU. Roling back the iPods software to an earlier version(preferably before the hu was made) usually fixes any compatibility issues