Have you actually tried the Karma in the car yet? My wife's worked great, but it wasn't near as nice to use as the empeg. The navigation is a pain while you're driving and it doesn't automatically cut off when you turn of the car. The latter is pretty obvious, but it's one more step you have to take whenever you get in/out of your car and it became a mild annoyance for me. Still, a Karma is better than anything else other than an empeg, and you can't beat the portability. I'd just hate for you to buy into this solution and find out it's not really what you've come to expect out of your car stereo.