Blower / Heater Problem

I Have A 2001 Grand Am Gt... The Blower Only Works On Fan Settings Of 3, 4, And 5... I Have Been Told It Is The Blower Switch Is This Possible Or Is There Something Else I Can Check First? If It Is The Blower Switch Where Is It Located?

I have a 97 Grand Prix with the exact same problem. No resolution yet. This happened after the radio display quit working.
Hopefully someone will have some suggestions

It Is The Blower Motor Resistor Is Blown,it Under The Pass.
Side Kick Panel Behind The Blower Motor And Is Held In By 3
5.5 Millimeter Bolts.its Is A Common Problem.

99 Grand AM SE
same problem, Pulled the blower resistor, its blown
Autozone.com says it has the part $15.99 wells part# DR774