is the "round connecter" an 8 pin connection? because if it is, that is connected...the problem is with a rectangular black piece of plasticwhere 2 wires are housed and seems that these other two wires connect into

I need help reconnecting what must be the power chords to the disc changer in the trunk of my GLT, there are 2 cables (one black and one green with black stripes) that are hanging freely, how do i go about reonnecting them? I've tried a few different ways, and one produced spark and the others nothi...