me has update too
reversing the battery seems to have left the ecu fine, or at least still running. i just popped the 100 amp 'ALT' fuse (that was fun pulling out, i had broken away all the plastic around the copper contacts before i realized they went down into the fusebox and had to be unbolted to be removed)
finding a match to this 2.5 inch cold air intake has been fun, currently have a random paper air filter stuck into a 2.5-2" adapter, with black tape around the smaller side so its not completeley loose in there
the haynes manual told me i had to remove the entire dash and ac/heating units to get to the wiper motor, so i had the ac released (thru a bucket of water, which scrubs it and is all epa happy per the gentleman at the oil change place.)
actually looking for myself i found the motor right next to the brake assembly. currently about to go outside with a leaf blower to try and blow out the nut from the wiper linkage i dropped down the wheelwell somewhere, then fix the horn and get it inspected, and im a happy celica driver

then start figuring out if it really had and how im going to get a charge of r12 or convert to 134 or whatever before summer heat really starts to come in