heating A/C question

[White00GPGT]

ok so my impala did this and it was the fan resistor or however u spell it lol... and way i have put 3 switches in it... the fan only work on 4 and 5... 1,2,3 are dead do you think the same thing happened like in my impala???? if so were is this thing located lol... also were is the blower motor located i need to replace it... it makes BAD sounds lol

[Blown97]

They are right next to each other under the dash on the passenger side.