I just switched from an iPhone 5 to Galaxy S4. Has anyone been able to successfully use a USB connection? When I do it the phone keeps switching between being connected via USB installer and device (on the device) and it never establishes a complete connection and only charges (hardly at all though). Bluetooth works well enough but when Im listening to the car radio and I have google maps running on the phone it doesnt interrupt the radio via bluetooth like the iphone used to....is there a setting im missing? Pardon my ignorance im brand new to android and havent had the phone 24 hours yet. Thanks in advance!