So, what else is out there?
Unfortunately, it looks like my 4.2 is beginning to die. In particular, the headphone jack. If I move the connection in a certain way, the audio dies. Tried different headphones and cables to be sure that wasn't it, and it wasn't.
So I started hunting around to see if there are other player options like the 4.2. Mainly something with Android and an SDHC slot and I can find exactly 2 things, Jack and Squat. An Ipod Touch would be great if it had a card slot, and the PlayMG seems like it might be ok if it had a battery that could last. I use my 4.2 sometimes 10+hrs at work so it's gotta last.
Or, am I just thinking about this wrong and I should just switch to bluetooth headphones and a BT carkit/new deck?