Blower Problems on 91 100

[Geoff Doctor]

I have a 91 100, and the blower motor will not turn on, hasn't since I 
got the car. The fuse is good, but I am not sure which relay I need to 
check. Anyway, When I was working on the radio I noticed there was a 
loose cable with a I believe rectangular connector that was not 
connected to anything. It did not fit on the radio, so I left it. I am 
wondering if this is the culprit to why the blower will not work. All 
the lights come on and the temperature gauge works, but not blower at 
all. If this cable is the issue, how do I go about pulling out the 
climate control to connect it. If not, what are some other 
possibilities to see if it is dead or not?

Thanks in advance,
Geoff Doctor