You have issues with the 3 blades discharging grass to one outlet? I always felt like it would have issues trying to move all that grass from one far end to a small discharge all the way on the other end. I feel like tall-ish grass with two blades can be bad enough sometimes.
There are speaker wiring diagrams/colors in this thread that should help
http://9thcivic.com/forum/threads/2012-civic-audio-wiring-guide-pinouts-for-factory-radio.5916/
Likely Miami teal.
https://vvividshop.com/products/2018-vvivid-matte-miami-teal-metallic
If you look up that color in google images you’ll see other cars wrapped in it.