wiring harness : 38370-SA5-8101
relay [?] : 37300-PB2-811

just a couple of things.
the reason i think these are 4-wheeler parts, is there is a license tag holder [new, in the bag, but no part number on the bag] the size one [or possibly a motorcycle or scooter] would have, and the storage building owner these parts came from said there was a 4-wheeler there at one time.