I can not here radar contact very well Is there any way I can turn this up? It is there but hard to here .I have turned down my settings in the sim but still no change .This is out of my speakers. Thanks in advance.

You should check your master and then .wav mixer settings in your windows/audio card mixer, advanced settings. If you have surround sound emulation turned on that could make mono/voice recognition harder in some instances.Is it loudness or definition? How does audio play using other applications. RC plays through your .wav output in your card (then through your master setting), not via the FS sound system. The sliders in the voice selection settings of RC are speed, not loudness, but by clicking on any controller will play a voice sample that you can use for setting your win/audio card mixer settings. FS need not be running for this.