Installing the T1808 system, Have a premium sound car, need more info Options

[razor7]

Alright,
So I already know that I'll need to kill both amps and run everything off of just the deck itself (though I plan on wiring in a breakout box to send power to an amp that will power 8" polks). Will the stock wiring hook up to the 1808, or will I need to create a pinout connector and work on the wiring some (I can work my around with a soldering iron, shouldn't be too difficult)?

I'm also wondering if anyone has a pinout for the stock mid range amp (the one under the seat). I want to put in another semi-low powered amp in the same spot, and if possible, use the same wiring for the doors.

I have also been reading around and in order to get out the stock amp (next to the climate control) I'll need to tear apart most of my dash and center panels. Is there any special operation/order needed to go about doing this (I skimmed through the other thread, I'll re-check it once I get the radio).

Thanks,
-TC

[Culpable04]

Alright,
So I contacted Scion and Pioneer, neither of them will release a wiring diagram/pinout to me. Does anyone know where I can find one?

-TC

just an assumption, since they plug and play all 86+ toyota vehicules with non premium sound system, wouldn't their pin-out have to match with any other toyota radio and be a reciprocate of the 1986 + toyota stock radio harness ?