Those wire taps are freaking genius. I just found out they exist about a year or so ago. I've been using standard T taps but that's only because I have them. When they run out, I'm ordering posi taps. They look a lot easier to work with, especially in tight places like tapping into wires for a project like this.I ended up finding the correct one. Driver side maker light w/LED headlamps use the white wire with brown stripe. Your right not much room at all but was able to use the posi tap and now works great!