Universal means they come with bullet connectors and you’ll need to cut those off and add appropriate connectors to plug into harness. Easy enough to do with these:
http://easternbeaver.com/Main/Elec__...onnectors.html
Some Hondas do come with same connectors, but you really need to confirm which models.
Also many generic universal LED signals are too dim. I prefer a bright incandescent bulb in my flush-mounts.
https://www.luckybike.com/turn-signa...universal-1801
https://www.dimecitycycles.com/bikem...mber-lens.html
https://www.revzilla.com/motorcycle/...t-turn-signals
https://www.walmart.com/ip/HTT-MOTOR...ikes/997174735
Here's one that might fit without custom wiring:
https://www.ebay.com/itm/331836697815