Just bought a 2018 Altima and would like to be able to turn off the running lights that are on during the day. Anyone have a good solution?

The DRL circuit is pretty simple, there are no fancy diagnostics to worry about and both lamps are fed from a common wire and a common relay. The relay is all by it's lonesome directly behind the righthand headlight assembly. The violet wire into the relay is the "trigger" from the IPDM, interrupting it with a switch will allow you to kill the DRL's.

Thank you. I'll check this out.