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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Replaced both my yellow stock headlights with a pair of Spyder lights and noticed this plug and harness and have no idea what it's for...educate me!
Long story short, while routing a salvaged harness, I determined that's a ground joint (cluster) .
Ground Joint example
Long story LONG, have an '01 also without factory fog lights. My dad gave me the fog light harness from a Nissan and the actual lights off another Ram. I kept reading that there is wiring for fog lights on our trucks even if there are no lights installed. Try as I might, never located it so I used what came off the Nissan. I went to a local junkyard and got the headlight/fog light switch off either a Durango or Dakota. Ran only 1 new wire from that thru the firewall to connect to a relay on the salvaged fog light harness. Best I recall, I put a jumper wire inside the relay so fogs stay on with high beams; we live in a rural area where deer abound & I don't want a hoof or rack in my face.