Aftermarket sub to factory HU- HELP!

[bound4h]

I am trying to install my two 12" subwoofers and amp into my 2003 Explorer Sport 4x2 XLT.

It has factory:

6-disc CD changer
Subwoofer in back right quarter panel

My question:

I would like to keep the current 6disc changer and use it in conjuction with my new amp and subs, but would like to know if it has pre-outs for an amplifier. I assume since it came with a sub and amp that it does. But I pulled the radio out and the only presence of preouts that I saw was one thick orange cord coming out from the back right of it, and I think that was the antennae.

Where are the preouts? Where is the amp for the sub? I tried to pull off the speaker paneling in the back but cannot get it off to investigate.

Any ideas?

Thanks,

Mike

 

[DOZIER]

http://www.crutchfield.com/S-hZFONVwvQtD/cgi-bin/ProdView.asp?g=721&I=142SLC4
Try using one of those or find a better one somewhere. They are called line level converters.
Or try this link.
http://www.electronixwarehouse.com/car/accessories/line-converters.htm
Skips the confusion and all. Just follow the easy instructions on the label and it is really easy.