Just purchased (Jan 08) a brand new2008 MAGNUM SRT8with Sirius Navigation, TV, etc. On my first ride I discovered there's no audibledirections while in the NAV Mode. Only way to hear directions is by turning the radio up, then directions are somewhat audible through the radio without being muted (radio should mute. Mine doesn't).According to the manual and the dealer the radio volume should be independent of the NAV Volume (it's not) and that I have a software issue. The dealer is ordering the software and will reboot my system orwillreplace the entire control unit and should be corrected this week. Anyone else experience this problem? Oh yeah, the remaining 2008 MAGNUM SRT8 Magnum on the showroom floor has the same exact problem. So much for Quality Control. Thanks in advance. [align=right][/align]