This was part of the extended loom to the ignition switch:
OMGoodness! He was a butcher for sure lol. But, a little wire, a little TLC, and a few OEM bullet connectors, and you should be OK. I found my local shop stocks the OEM style connectors, in most configurations, and I purchased a set of PICO crimp pliers for the pins inside the 2-4-6 pin connector blocks on most Japanese wiring harnesses. Along with the occasional spade connector, and bullets, I am able to repair with a good amount of success, most previous owner faux pas wiring. It beats going to the local auto parts store and buying those connectors...
BTW, the 550 looks good!
Charlie