Hey, I'm looking to purchase an FM transmitter for my car that functions as a stand, charger, and transmitter for my Microsoft Zune. Has anyone ever used Belkin Tunebase products? The radio waves are sparsely populated where I live, my car has no external antenna, and the transmitter would be located right in front of my radio. I can get one for 20$. Are these worth the bang for the buck given the right operational conditions?