Audi a3 fsi 2.0 electrical problem

[Otis]

After removing the key from the ignition, the radio doesn’t turn off, the "income home" button stays illuminated, as does the button on the mirror and the hazard light switch. Additionally, the position lights are not working, and sometimes the left headlight turns off while driving.

 

The headlight switch has already been replaced, but it didn’t solve the problem.

 

What could be causing this issue? 

[cliffcoggin]

My guess is the ignition switch or one of the relays is defective, causing the contacts to not open. I suggest you get it tested by an auto electrician.