Located one on either side of the radiator on 2019 G4 US spec sedan these yellow ???s seem to have been detached while work was being done on the front clip. Unfortunately I don’t know what they are, what they do, or where they belong. Currently they’re dangling in the engine compartment. The one pictured is the one on the left side of the engine whilst facing it and the second black colored item in the photo is connected to the same wiring harness not on the RH side one.