Thanks Bob
I do not have the mod 4, only 2 and 9, not sure what that will mean??
But, yes, I am wiring to the audio on the pilot and co-pilot positions and have the grounds hooked and only have one other audio wire each to connect to the rear of the 340 so that just needs to go to the left position and leave the right empty...
All com on the SL30 will come in mono on the left channel then??
Trying to be sure!
Thanks again!