Factory trailer light plug

Ok my 94 has the factory light wires down to the bumper with the round plug on the end. I'm having trouble finding the pig tail that plugs into that and goes to the trailer. I found one that they say us for the truck but I'm finding alot of ones that are for the second gens. If anyone could give me a link to where I can get one to fit my truck or any info on them. I found a lot on eBay but I'm just not sure what to get. Thanks

 

[thebrakeman]

Go to www.etrailer.com
and search for your vehicle.
When I looked for 94 Explorer, I saw none for a round connector, but there were a couple of the T-One type that simply plug in behind the tail-lights.