Figured it out! I was using a jumper wire to verify where to tie in the green wire with yellow stripe. I was jumpering it to the wrong green in the original I/S 3 pin harness. Then I realized there was another green, but with a red stripe. I jumpered the green/yellow from the brake light to the green/red wire and it now works. Now she’s spliced with one of the blue “inline” splicers and is good to go. The 3 pin connector is still in place since I used the splicer, so I think I should be able to run both the standard and trunk lights at the same time by simply plugging back in the trunk connector when I want to use the trunk for trips.
Thanks guys, for your input!
