aint nothing too it! (from the guy that invented the audio=only RWR 'way in the 2000s.)
extract the avionics ini fro the Nesher from whatever cat it's in. Also, extract the data ini -- it'll need updating too.
place both in the Nesher's aircraft folder
open the avionics ini, and add the following lines:
[RWR]
Type=AUDIO_ONLY
TrackSound=RWRTrackSound.wav
LockSound=RWRLockSound.wav
[RWRTrackSound]
Priority=HIGH
3DSound=FALSE
Looped=TRUE
NumBuffers=1
[RWRLockSound]
Priority=HIGH
3DSound=FALSE
Looped=TRUE
NumBuffers=1
save, and close
open the Nesher's data ini, and in the DetectSystem section --->
[DetectSystem]
Name=
RadarType=RANGING
VisualBlindArc=5,6,7
VisualRestrictedArc=4L,8L
MaxVisibleDistance=7200.0
HasRWR=FALSE
change the FALSE to TRUE.
this will give you the beeps! (no direction, but it'll tell you when something is looking at you, and when they shoot)