non-JBL premium sound question

ok, i got a 96 MGM with premium sound. ive researched this for a while now and havent yet found a solution. first off, i know my way around car audio and i'm no novice to it, but this ford premium audio thing isnt ordinary. i do have the service manual and the electric book too. this is what ive come up with so far....

this is the back of my radio, one long harness and one small square one. hence premium sound. the long harness is just for power and ground purposes. the smaller one sends coded sound messages to the rear amp. then that amp sends out the appropriate sound to the different speakers.
img

this is the radio i bought to replace the tape player:
img

ive bought this: since the above radio is a 98+ model with the single harness


but only the long grey harness can plug up. im left with the smaller harness. since this doesnt send positive/negative/left/right/front/back signals, i cant tap into it from the other harness(the black one).

ive checked all the harnesses from the scosche ones to the metra ones. the only one that looked correct is this one(the green one)
http://www.scosche.com/CatalogImages/image.aspx/FDK10B.jpg

but, i dont see how you can wire that to make it work. Do i have to run all new wires to an unplugged harness at the rear amp? or would this harness work, and if so, how in the world would i wire it.

thanks



I NEED TO FIX THE IMAGES

I have a 96gm as well and i went thru the same thing. Basically, when you decide to install an after market stereo the existing amp is no longer useful. The unit in the trunk is an amp/tuner so once you unlpug the tape player its useless. Essentially you have to run rca/power/keyed power to another amp for rear or box speakers and run your front doors off the new deck. Or run your rear deck speakers off your stereo

do you have automatic printed on ur tape deck lid?

i figured it out. had to run speaker wires to the back. it doesnt even sound as good as the premium. bass response is awful along with upper high clarity. my stock tape/premium radio handled this alot better. now im on a journey to find a cheap 95-97 premium cd player, now i need to sell this one....

thanks for the help.