This led to me having to relocate the dq-61 to the back, which I really didn't want to do, and then had to run some 9 wire back from the front. I just connected this to the harness from net audio.
Here is a close up of the speaker wires on the rack. Wanted a way to quickly disconnect wires if needed from rack. Also, because these radios are funny about loading, you can see the resistors I installed.
At first I didn't use any resistors and everything worked fine. Then I would occasionally lose audio and figured this was prolly the reason. No issues at all after putting them in.
I should add that I used the DQ-61 for my front speakers and sub. I left the rear speakers running off the head unit. So when I lost audio, I would only have the rear speakers outputting audio. This led me to believe it was the loading problems known from these head units and not my wiring/dq-61 failing.