Discussion Starter · #1 ·
I have a dead-ended plug on the driver's frame rail near the rear axle of my '04 Ford E350 15 pass. van. The cap on the plug has part #F6TB-14A666-A. Can anyone tell me if this is the trailer hookup harness? I know it's not the end, there must be another plug that inserts into this and runs to the back. It is definitely not one of those round trailer type plugs. Once I got the cap off the end of the plug, I can see four metal pins inside the plug. I am getting ready to install a hitch and need to wire up a trailer lighting connector.