Hey there brian. Pirate away, I love the door light mod and I'm sure you will too :smileup: Besides, imitation is the highest form of flattery, right? Now, to answer your questions: I hooked the trigger wire (30) to the dome light, ran the + off the battery to the (86) terminal, and the (85) I wired to a common ground (doesn't matter which order you do this in). Now, I used a double pole single throw relay, so I could have all my interior lights off of one pole, and my exterior off of the other, just for simplicty of wiring. This means that all my interior lights were run off of one (97) terminal, and the exterior off the other (97) terminal.
Now, the way I went about running all my lights off of one relay was the use of distribution blocks, avaliable at any auto parts store. If you check out the build thread I did you'll see the interior one I did; just allows me to run two wires off the 97 terminals and then distribute wire to all the lights I've done