[Elecraft] K3 Audio routing question

[G0AFH]

Hi

Is there a way to get the audio from the sub receiver into both ears 
without external switching?

Here is why I want to do it.

K3 in diversity mode so that frequency and filtering is locked together.
Main RX on an antenna pointing in one direction.
Sub RX on an antenna pointing in different direction.

If I am called by a weak station on the Sub RX and I have QRM on the 
main RX I'd like to switch both ears across to the Sub RX to concentrate 
on the weak station.. As far as I can tell I can't do this in the K3.

73
Ian
G0AFH