StuckInVA

Hey guys, I'm new to the forums, and I appreciate all the help everyone has already given me through their own posts. Unfortunately even after searching through the forums for quite some time I couldn't find a solution to the problem I've been having. I purchased my 93' ES300 almost a year ago knowing that it needed a new head gasket at the least. I was able to find a used 3VZ for a marginal price (~$140) and set out to swap the motor and keep the original for a rebuild. The "new" motor had a lovely knock, so the original went back in. Before I did all of this work the radio worked fine, needless to say now it doesn't. To be specific, it doesn't do ANYTHING: It doesn't light up with the climate controls, it doesn't extend the antenna, it doesn't make any noise whatsoever. During the engine repair process I had the ECU harness unplugged several times. I've already checked the RAD Fuse in relay block #5 and the CIG/RADIO Fuse in junction block #1, and neither was blown,

I suppose what I'm asking is if anyone knows if there was something behind the glove box near the ECU that I may have forgotten to plug back in, or someone may have some troubleshooting steps I could benefit from, I've gone for quite a while without audio and I plan to replace the whole system with an aftermarket as soon as I have the funds, but it would be nice going into that knowing everything was working OK before.

Also, to the best of my knowledge the problem is exclusive to the audio system, everything else seems to be working just fine.
(Sorry for the long post)