I have an Aux connector in my car that I'm plugging my iPod into via the headphone outputs. It's almost OK, but the sound quality isn't what it could be - the levels are too low, and cranking up the volume in the car exposes some low-level noise. There's also something not quite right about it that I can't put my finger on.
There are tons of adapters that plug into the docking port and expose a line out connection, which should be better than the headphone output. There are a couple of problems with these:
- Most don't allow you to charge the iPod while the adapter is plugged in.
- None have a built in line level amplifier. Some might have a headphone amp, but that just puts me back at square one. I'm not looking for more power, just a higher amplitude.
I have found a couple that allow charging such as the FiiO L11 and the PocketDock Line Out USB. Unfortunately they don't appear to have any amplification.
I hope there's something out there I've missed.