Car Trailer Refresh, Finally!

My car trailer gets a lot of wear and abuse. I finally get around to fixing some things I've been meaning to do since I bought it. Its only been 8 years or so that I've been putting this stuff off, not too long...

I got a full set of lights and wiring stuff from Nilight for this, here's links to the products used in this video:
https://www.amazon.com/Nilight-Trailer-Housing-License-Warranty/dp/B0BHSYXSY3?ref_=ast_sto_dp&th=1
https://www.amazon.com/Nilight-Heavy-Inline-Trailer-Junction/dp/B07PT5Y29V?ref_=ast_sto_dp
https://www.amazon.com/Nilight-Clearance-Indicator-Waterproof-Warranty/dp/B07V7F1RQX?ref_=ast_sto_dp&th=1&psc=1
https://www.amazon.com/Nilight-TL-11-Stainless-Identification-Warranty/dp/B07WW7QQ2Y?ref_=ast_sto_dp&th=1
https://www.amazon.com/Nilight-Trailer-Fender-Clearance-Warranty/dp/B08W58X3CH?ref_=ast_sto_dp