Radio wiring different than everywhere on the web says it is.

I own a 1999 Ford Explorer, XLT, 4dr, 4wd.
I'm putting in a new CD player (along with amps and such, but that's already figured out) and I was about to buy the female version of the radio wiring harness when I noticed that there was one for standard and one for the special sound system with a ford amp somewhere in the car. So, I pulled the radio out and looked to see what I had, and mine's totally different than either of the wiring harneses, which showed large slots for each pin. Instead, I have two black rectangular harnesses with a lot more wires going into each one than usual, more than the others had. The ends of the wiring harnesses (that connect to the back of my ford CD player/radio) are orange plastic with three or four rows of tiny holes for the thin, long pins sticking out of the back of the radio. So, I'm looking for a diagram that'll tell me that all the plethera of wire colors are, and for possibly a female wiring harness that'll have a few inches of wires coming out of it that are the standard aftermarket radio wire colors and such. Also, does my explorer have a ford amp in it? With all the wires I'm suspecting that I do.. If I do, where in the car is it? Also, fee lfree to give me any other information aroudn this that'll help me out, I always appreciate it since I'll probably need to know those kinda things later, if not now.
Thanks for your help!