TRying to figure out what this plug may be for under fuse panel door?mI'm in Belgium and finally got my truck last week from the states, 2001 sr5. I had a mandatory rear foglight installed today and they tapped into this. It is hot only when key is on. Is it aux. Plug maybe for front foglamps which i don't have? Just wanting to make sure they did not use something they should not have. My French and Dutch sucks so not easy to communicate