Mr. Gilly – Point taken. I did indeed try to adjust the NAV volume while she was talking on her own, to no avail. And this was the reason I started this thread. It was not until I tried your method did I have success at adjusting the NAV volume. And it is still at the same level to this day. Perhaps the fact that I held the NAV/VOICE button in while I adjusted the volume is why the RADIO volume also adjusted. This would have been my fault for incorrectly following your instructions… I will be starting a road trip tomorrow and everything is working just fine with the NAV and I will not be changing anything..

Mr. George – Thank you for clearing that up for me. I do agree with you that this option is for the number of navigation commands. I guess I was just stuck on the volume thing and could not see beyond that problem and jumped to the wrong conclusion when I saw MIN-MAX for VOICE. The value of this forum is so great!!! :p

Have a good day all.
Regards,

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His_W163
MY02 - ML500