I have a couple of pairs of Logitech Bluetooth headsets. The kind that break although I used my lighter to solve that problem. I've been using them to listen to the audio on my Axim and Tmobile Dash. I have a pair for home and a pair for work thanks to Woot for a 2 pack for $39.99.
It dawned on me that I also have the Logitech Wireless Receiver for the home stereo, courtesy of Woot again for $19.00. After a quick little power adapter modification, I now have the wireless receiver hooked up under dash to the auxillary line in on my car receiver.
No more wires.
