Mazak,
If you are trying to get the routing to work properly (without new acoustic libs) then the thread arrrghhh posted for you should get you there.
Have you tried the steps posted there?
Just in case you missed it...
[Testing] Bluetooth Audio Routing FRX07 XDAndroid
Also, you should wipe out any changes you did and start with a fresh FRX7.1 load to make sure you don't have any residual from your previous testing.
Another option is to pull your own .CSV files from the \windows folder in WM.
Also, there is a thread on increasing audio volume
here from vzihome. There are two cab files you download and install into WM. Seems to have helped with some low audio problem for me and also updates some of the .CSV files in the \windows folder.