More urgent things to spend money on than a sound system. Still, it would be nice to be able to hear my phone while driving: podcasts, music, whatever. Is anyone with an iPhone using a WIRED speaker they're happy with? Meaning, one that plugs into the phone or a dock, can take being jostled around, and is DC or battery-powered? I'm NOT looking to hook the phone up to existing audio, because there is none. Thanks for any help!