There is someone that builds them , you cant make them at the quality he does for the cost.

http://www.forbbodiesonly.com/moparforum/showthread.php?88359-Plug-and-play-headlight-relay-kits

1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!