Happy I found this. I'm pretty dense though, so can I confirm, the harnesses above are like a Y harness (guessing from "jumper"), so remove taillight, remove taillight plug, plug in Jumper harness to taillight and to current harness and to the LED lights, tuck away any extra wiring, then put all the lights back in and secure? I'll tackle the alfaOBD thing later (I have an iphone, not android), but want to be sure this is all that's needed. I can do this, but I wasn't thrilled with taking out all the wheel wells and messing with pinning under the dash and almost contemplated having the dealer do it. Thanks!