Denji Projector wiring question

I have a 93 honda civic hatchback and recently installed some Denji Projectors. I installed the lights in place fine, but wanted to see if I can get some help about how to hook up the wiring harness. The harness consists of 2 red wires (battery), 2 headlight connectors (headlights), and then another connector (no clue), and a couple ground wires. Is the extra connector supposed to plug into the old headlight connector and if so which side?

I'm assuming directions are always a last resort??? jk jk. The extra connector comming off the projectors, does it look like a power cord that you would plug into a socket? like stock headlights?

I got the projectors wired up over the holiday weekend. The harness hooks up like I thought and the extra connector plugs into the passenger side original headlight connector. They changed the look of my car and was well worth the time spent figuring out how to install.

Grary.........you know that instructions are the last thing you can expect to get when you buy stuff second hand lol.........thanks.......