in the fuse box there are several types of fuses. there are some fuses that are very small almost like a box cutter and the end is plastic and colored. on the end of the colored part it has a # of the volts. then there are other fuses that are 3 times as big. 3 of the smaller fuses can fit in a small square section while the big fuses take up the whole square. can i buy the big fuses at any shop like the small fuses??? i think my AC fuse blew since the AC/heater fan doesnt blow.