My brother has the attachment alreadydamn you have that OCD hahahaha
if you gonna take it off pavement just save your time and trouble because dirt will get trapped again. better just buy a chassis sprayer attachment for your pressure washer and just hose it down from under lol
Deutch connector or weatherpacks both work fine for aftermarket use.

Yes, weatherpack terminal connectors are what I've been using for years now. The Deutsch connectors appear to as they might be better.