wire stiripper/crimper and some quick disconnects.
you could probably use some pliers instead of a crimper.
I used these to connect to my wires to all spade connectors:
https://www.amazon.com/gp/product/B01962MW2G/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B01N0M6PP1/ref=ppx_yo_dt_b_asin_title_o09_s01?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B01G408A4M/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1