I use Mobilenavigator on my iPhone 4S. The previous version of navigator the volume was really not too loud. Now with this version they broke the volume even more. I tried to find a manual to see if I have sound settings correct like background Audio, mute, etc. NO MANUAL TO BE FOUND. Anyone have any insight or experienced this problem? I may start looking at other products, Navigon has practically no real method of support or even a methodology on HOW to support. Anyone got idea's?