Where is the blower motor resistor located on a 2004 Mitsubishi Galant?

It is indeed on top of the blower motor behind the glove box, but there is something you should know about the part in question. Sometimes, Mitsubishi used a transistor instead of a resistor, yet most parts sellers only sell the resistor. If you pull the resistor and it has a heat sink on the bottom and the part number is Denso 077800-something, then it is the transistor you are looking at, not the resistor. The connector will not even fit and there is no telling what could be damaged if you used a different pigtail to make it fit. The correct part to replace the transistor is the same one used on a 2006 to 2011 Honda Civic. Hope this helps.