Ok so yesterday i installed my nardi wheel into my car. I used a Nrg quickrelease to connect it. So now when I drive my power steering doesn't work anymore. Anyone know what i should do???

 

check the belt.

 

did you unplug anything near the steering column? did you re-align the turn signal switch correctly?

does your car make any prolonged beeping sounds?
start checking fuse, belt, pump, lines basically anything to do with the power steering.