Audio Mute when in R

[baobay]

got a loaner LR3 a few weeks ago. I noticed that with the radio on, when I put it in reverse the sound went off (muted) and came back to the preset level as soon as I took it out of R. I assume this is so the driver can hear the sensor beeps more clearly. I was wondering if anyone is aware if the LR4 can be programed to do the same.
Thanks,
George