i have a subaru wrx 2003 and when i drive it i get like a humming nose and it get louder when u go faster

Worn wheel bearing.

its the nut behind the wheel.

wheel bearings are shot.must be alot of milage on the subie, they usually dont start to be problems until after 80k milage, its a relatively easy fix, you dont have to take it to a subaru dealer, take it to a garage you know and trust.be alot cheaper, dont wait too long.can cause major trouble

poss wheel bearings or the differential if its the 4x4 version

1. Its a Subaru
2. Its your bearing