Yes.
parts store, junkyard, or online
You must remove the glove compartment door to access the blower motor. On top of the blower motor will be wires connecting to the top. Release the connecter and let it dangle. Then using a screwdriver, remove the blower resistor on top, where the wires connected, and replace with a new resistor.
www.mem.com
Yes
Motor getting tired and needs replacing
on my 92 tracker with 1.6 motor i get about 20 to 21 to the gal.
In the dash under the glove box
Many are in the air duct near the blower motor.
No. The Prism motor is a Toyota motor and side mounted. The Tracker motor(suzuki) is mounted with the engine from front to back, so it will not work without a lot(I mean a lot) of work to do it.
1.6 geo tracker motor or sidekick would work its all the sme
with enough money and time any motor you want.