I have the Belkin tunebase. It (usually) is great: it gives hands free calling and works through the car's speakers, it scans for the best FM freq to use, it even has an extra line-in jack and a USB port. However, lately it's been erratic. When playing music, it keeps pausing and starting again, playing the music in fast-forward, and keeps turn the voice control on and off. It's very annoying. Has anyone else had experience with these symptoms?