Tommy

I have an 861 rather than a G68, but I suspect the answer is the same, which is that the RL/RR and C/S channels are carried on two different outputs, so you cannot daisy-chain the signal out to the surrounds from the sub as there will be no surround signal on that channel. You will have to run a signal line back to the processor from the surrounds.

However you should be able to daisy chain the comms lines in the way you describe.

Regards

Mark