97 Civic EX AC blower

The AC blower is failing. At first we lost the first two fan settings low(1) and medium low(2). Then it started intermittently making noise(really loud, can't hear the radio or talk over it) when it was turned on. Now, it makes noise the entire time it is turned on and the noise has gotten louder(can be heard outside of the car with the doors closed from several feet away). What parts do I need to replace? Do I just need a new motor, or will I need more?

Thanks.