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I'm looking to convert my 89 Suburban over to relays for the headlights. I want to retro fit a relay box from a newer rig rather than make one from scratch. What vehicle can I find a good relay box from when I go to the junk yard?
Why do you need a box? Mount them terminals down, coat the connections with dielectric grease, and call it a day. They are made to be used in moist environments, and have a drain hole.