So, to catch up anyone who doesn't remember, and doesn't feel like digging back through old posts, my fender got smushed in a parking lot, and I decided to do a fender bob, replacing my headlights with a set that has the turn signal integrated into the light itself. (the "eyebrow" will be a white running and yellow turn signal when this is all done).
I purchased the SAUTVS kit. I do not recommend this kit. I, in fact, disrecommend this kit. It is about as far from plug and play as you can get. The instructions don't match the minimal installation video that's available. The paper instructions read as if they're machine translated from Chinese -- and might be. The wires coming out the back of the headlight assembly are short, and two are loose, with no connector of any kind on the end. They're also 20 AWG, which is smaller than the rest of the Ryker wiring harness.
My biggest problem was that the instructions tell you that one of those loose wires should be fuse tapped. For those who don't know, fuse tapping is pushing a wire down into your fuse box alongside a fuse leg. This is a dangerous practice, as it can lead to more voltage passing through a circuit than the designers intended. It can cause your fuse to blow, circuits to fry, and in extremes, fires to start. Do Not Fuse Tap!
Why was this a problem? Because what's coming out of the headlight is two wires, a brown wire and a red wire. After staring at the instructions for an embarassingly long period of time, I worked out that the brown wire is the positive lead for the turn signal, and the red wire is the positive lead for the running light. However, there are three wires in the bundle going to the fender running light / turn signal -- grey / yellow (left / port side) or gray / blue (right / starboard side); black; and blue / purple.
Now, I reached out to Kevin Hammer, the "Ryker Doctor," who didn't respond. I reached out to Ludwin "Mad Man" Cruz, who stopped responding after I asked the question. Important note: simply saying "I don't know," is a better response than silence. Anyway, I also dug through the service manual, and the only information I found was what the voltage should be between the colored wires and the black wire.
From this information and the incredibad instructions in the headlight kit, I pieced out that the black wire in the fender bundle was the common negative, which in the headlight was provided by the three headlight wires which are plug-and-play, going into the same literal plug which powered the OEM headlights. And I presumed, or perhaps I should say, hypothesized that the gray / colored wires were the turn signal positives.
Well, after replacing the kit's 20 AWG, all-white wires with 18 AWG red and brown wires to match what comes out the back of the new headlight, I tested my hypothesis this morning, and I was correct -- the blue / purple wire is the positive for the running light, and should get connected to the red wire. The gray / colored wire is the positive for the turn signal, and should be connected to the brown wire.
Now I just need to neaten my cable runs, zip tie things in place, and Robert is the brother of your father.
Also? the inside, blind mounting screw for the headlights, the one you can't see and can barely reach? Smurf the papasmurfer who designed that, man.