I got the shaker 1000 in my car, bought a Motorola Droid on my Verizon plan, sync'd 'em, and now I have integrated nav with Pandora internet radio that work harmoniously together through the shaker 1000. No commercials, only the music I like, and the Google maps app is shytloads better than the Garmin I had. The app cuts into the music to give me a direction through the radio, then the music cuts back in. Sound quality is awesome and having a factory installed sound system means nobody was hacking around with my wiring harness. I've seem some real rats nests from people installing aftermarket sound in my old cars. About the only thing I lack from the true navi system is the screen in the dash, but honestly, I'd rather look at my droid mounted up on the windshield than be trying to look past my shifter to eye the map, and the droid has a bad ass HD display that rivals most top dollar GPS systems anyway, and it updates the maps automatically, unlike those pirate bastards at Garmin who want $100.00 to keep your GPS current.