96 mustang, new radio

I have a 96 mustang with the separate radio/tape player and cd player. I'm installing my new sony cdx-gt32w. I have a wiring harness for the main wires but not for these two giant gray bundles of wires that are connected to an 8-pin terminal. I've looked and asked everywhere and nobody said they could find one so I cut them off so I could manually wire them. When I cut them off there were 8 little, tiny wires with colors that don't match my color chart for my car. What are these wires? Are these the speaker wires? If they are, how do I know which wires to splice together? I can't find a chart or anything bout them! Please help!!

Look down to the right there should be a junction wth two seperate plugs, one is grey one is black.  This is an amp junction but is also the best place to plug your harness into.  Purchase a schosche 1770 harness for ford/'non jbl radios. Advanced MECP

thanks! i hooked it up in 10 mins and it sounds great! i thought I was screwed completely when I cut off the terminals!

Glad to hear it.  I was ecstatic the first time i was shown that as well.Advanced MECP