Turn signal dash lights wont turn off

https://youtu.be/CRowJ6kK7B0 My guess is failed hazard switch.

Check for corrosion on your tail light wiring. My MK3 did that intermittently. Messed with the ignition switch, turn signals, brakes lights, etc. Ended up being a corroded ground on both tail lights from condensation. If that's not it look up your wiring diagrams and start checking the connectors on everything that's on the same circuit. Good luck