Yup, Would be easier to go back and take the entire steering column and the under dash harness then it would be to piece it together, plus, if you take the wiring harness under the dash and the wiring for the center console you should have the message center wiring and the EATC wiring for the EATC head unit that you have. Don't forget to take the engine bay harness with it other wise everything will work except the heating/cooling system, go ahead ask me how I know. When I say the engine bay, I mean only the outside wiring in the engine bay, it runs along the outer most edge of the drivers side, front and passenger side and nothing on the motor. Then take the blower motor control module so that the EATC works correctly. The engine bay will be the easiest to take off about an hour and a half. The under dash harness will be the most time consuming as you will need everything under the dash, heater plenum, the sun load temp sensor, the air temp breathing tube that runs from the top of the plenum to the dash receptacle it attaches to. All of this sounds like a lot of work, it is but it has it own reward when you are through. You could easily have this all done in a day and a half or 2 days if you milk it. I look forward to your pictures of this project, the accurate words used in taking some of the dash off. If I was back up in Tacoma I would gladly come help you. I look forward to your post.
Loquetus