All right, I installed mine and tapped into the driver’s sidemarker light. Works like a charm, and now they turn on and off with the DRLs instead of the ignition. I purchased the version with the remote (which I kind of regret now), so I had to cut off the provided fuse tap.
EDIT: apparently the sidemarkers come on when you manually turn on the DRLs (which I tested) but not when set to Auto and it's light outside (which I did not test). So during the day with lights on Auto (and they always are for me), just the DRLs come on, not the sidemarkers (or my new lights). Basically, they just come on with my headlights now. Bummer. I guess I'll have to either go back to the USB2 fuse tap or try to access the actual DRL wire if possible (which is much higher risk than messing up a sidemarker).
I’ll try to give a write up in case anyone is interested in doing this as well, but I forgot to take pictures during the process, so I’ll do what I can. Let me know if something doesn’t make sense.
I followed the driver’s sidemarker wires further down into the engine compartment to get it more out of the way (near where the headlights and turn signal get bundled together with it). I removed several inches of the factory wire loom there and installed a
22-18 AWG wire tap on the positive (pink/purple) wire. (I replaced some of the loom after.) I’ve marked the Favtor4 wires (also wrapped in
split wire loom) in red and the sidemarker in green here:
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The 22-18AWG wire tap I used didn’t bite deep enough into the factory wire at first so the connection was spotty. So I carefully made 2 cuts into each side of the insulation with a sharp knife and reinstalled the tap directly on top of those and reinforced it with plenty of electrical tape. Perfect connection now. I also used that T-style connector, so I had to crimp on a terminal to the Factor4 positive wire.
I didn’t bother tapping/weakening the negative (yellow/black) sidemarker wire and instead attached the provided negative terminal to the bolt circled in green in the picture, with the tap circled in red (sorry for the crappy picture):
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The rest is pretty much the standard installation. I used a few of these
adhesive zip tie mounts to bind up the slack and keep the wires out of the way. They’re circled here; most are on the underside of parts to hide them.
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