I am looking for suggestions on where to get automotive wiring supplies, especially things like headlight terminals, perhaps terminal blocks for headlight and turn signal switches. Anybody?
YnZ Yesterday Parts YnZs Yesterdays Parts; Manufacturer of Classic and Antique Automotive Wiring Harnesses (ynzyesterdaysparts.com)
If you're looking for bare housings without the usually overpriced pigtails it helps to know original part numbers. I bought some GM headlight switch connectors from https://www.mouser.com/electronic-components/ earlier this year (part# 02977645). The terminals I get from Waytek. I have a GM Standard Parts Catalog which has listings for some of the housings if you're looking for something specific.