Need help immediately stock radio wiring???

[Willys]

Hi guys:
I have a 2005 echo hatch 3 door.
I have my stock radio out and half my dash!!! I have installed the 6 1/2 " Infinities in my doors and a 10" sub in the rear powered by a 800 watt amp.
Problem is!!!! I need the wiring diagram for the stock radio to find out which wires go where. I don't want to cut and tear just for the fun of it.
I need to know which wires are for the rear speakers from the deck. I have the stock cd/radio Toyota #31806
Also...do I have to use the front dash speaker wires to power the doors and then the rear speaker wires to power my sub from the amp ...right?? I just need to know what all the wires do from the back of the radio.
I don't mind loosing the dash speakers in order to get the doors to work as long as there is a rear set of speaker wires coming from the deck.
I can't find any wiring diagrams on the web that I can download for free. Can someone please help???
Thanks:
Willys

[Bruce Campbell]

yeah got to bestby and buy a wiring harness for you car for 10 bucks, and some 18-22 gauge butt connectors unless you know how to so solder, this will make things alot easier

[jazz391]

yea, you need a metra harness. are you going to replace your factory deck with an aftermarket deck? as a general rule of car audio, never cut anything factory when you can avoid it.