Here's the situation.

I have a 1991 Mazda 626, for the longest time the blower was only
working on speed 3 & 4, finaly that gave way and the blower does not
work at all. I temporarily jumped the blower motor via the cigarette
lighter with an old power cord designed to use the lighter as a power
source (this worked for a few days but now my lighter does not work and
no fuses are blown). Of course It was unpluged from the lighter when
the vehicule was not in use.
I have since purchased a new resitor pack from the dealership and
pluged it up as it was originaly, the blower does not work. When I
engage the fan switch to positions 3 & 4 the engine revs high and low
for a second but the blower is inoperative. All fuses are good, first
of all, what elese could be the problem and second, how do I
troubleshoot my new lighter problem.

Any help would be appreciated.

Thanks in advance