On the front of the panel the upper left connection is from amplifier left, as you can see the wire going into it. the upper right is from amplifier right and the left is from amplifier left. The bottom connection is to speaker left and to speaker right, I will send you a picture of the old amplifier.
I now have a new subwoofer with only a negative and positive conection and as you can see on the old subwoofer you will see only 4 conections and these were for the red, blue, yellow and black wire and these were all coming from the positive side of the control panel on the enclosure.
this is a old DAK unpowered subwoofer I bought about 15 years ago and because of dry rot I had to change the subwoofer speaker.
I need help seting up my new speaker. I'm using a amplifier to speaker as I did before, I know I can go directly to the speaker but I would like to go thru the panel and as I said before I only have a positive and negative conection on the new speaker.