Yeah, essentially, it's just an aux-in adapter from www.rcainput.com wired to a very clean-looking 1/8" jack on the side of the storage pocket. Keep a 1/8" cable in the glove box and you're good to go.

No, it's not technically a docking station, it doesn't supply power, but with a 15-hour battery life, the Karma doesn't need to be supplied power.