Help - Sample Deck Setup - Turntables, A6 and 3 channel mixer

Help - Sample Deck Setup - Turntables, A6 and 3 channel mixer

I have been searching but cannot seem to figure out how to route my sample decks into the third channel of my mixer.

I have channels C and D routed to “main out”.
I have RCA’s running from my “main out” into the spare channel of my mixer.

But I am not getting any sound at all.

Do I need to send sound from my booth out to the A6 and then back to the extra channel? I was thinking because the sample decks are being controlled internally that it would go straight from the A6 to the mixers extra channel.

The channel was on phono and not line, stupid mistake in my part. All I had to do was press one simple butting, I knew I had the wiring and routing correct.