If you're not familiar with Dropbox, it's a free (to a point) cloud storage service that allows you to access shared files from nearly any device. Mashable readers were asked to provide some novel ideas on how to use Dropbox and one of the submissions involved syncing music, podcasts and audiobooks over the air and into your car.
Naturally, there are a multitude of ways to get music playing through your car stereo – USB input, RCA cables or an FM transmitter – and there are more than enough places to mount the netbook, although stashing it in the trunk and using a remote control smartphone app strikes us as the safest. After you've got everything hardwired, you can either use your home wifi network to sync things between your home computer and your newly install carputer or, if your phone can tether to the netbook, sync things while you're on the go. We're scrounging Craigslist now for cheap netbooks and already have a few remote apps picked out for both iOS and Android.