He does that in the write-up, though it's unclear from the photos if he actually soldered it or just twisted up pairs. The discussion of part of the wire melting also raises an eyebrow.. no idea about the authors hardware experience, but I've seen software guys use piddly 24 AWG on a multi-amp circuit

LVDS implies differential signals and are designed to minimize EMI and can be hard to splice while still maintaining signal integrity. They can support high data rates (ethernet cables also use twisted pair LVDS). Theoretically this should be feasible up to 100s or even 1000s of mbps

From messing around with these units from various cars, which often need more enablement than these, sometimes it’s nice to just know your interpretation of the wiring diagrams isn’t at fault when chasing down “no lights at all” issues.