Diagnostic guidance. Suggested checks and possible repairs are separate from the owner's reported results.
Check the VIN-based equipment information and the correct owner's manual before searching further for a missing harness. Confirm whether the openings or lamps belong to the original bumper arrangement or an aftermarket replacement. If factory fog lamps are confirmed, use the matching wiring diagram to identify the connectors and inspect for removed or damaged wiring. If they were never fitted, adding them is a retrofit that needs compatible wiring and controls. Do not borrow connections from parking sensors or the outside-temperature sensor. The first useful answer may simply be that this car was not built with that equipment. Confirming the build specification prevents buying a harness to fix something that was never installed.
Audi: VIN-based owner manual https://ownersmanual.audi.com/home/en_US Official equipment and operation reference. A manual may describe optional equipment; confirm the vehicle's build information before ordering wiring or lamps.
Fog light connector?
The owner looked for a front fog-lamp connector on a 2016 Audi. After checking both sides, the owner found no matching wiring and concluded that the vehicle might not have been equipped with those lamps. Factory equipment information was not supplied.
Reported outcome: The owner suspected the car lacked factory fog-lamp wiring; this was not independently confirmed.
The original equipment list and any bumper modifications were not established.
