Actually, that microphone is located on the left side (closest to driver) of the maplight and rear air control box above the rearview mirror. It is black and actually looks a little out of place despite the fact that it is factory. I believe the one in question is a heat sensor for the driver's side climate control individual temp selection. I could be wrong on the last part, but I know the mic for onstar from at least 2004 and up is located on the maplight box.
Onstar and/or hands free cell phone speaker.
The sunroof motor is in the headliner, above the motor switch You have to remove the sunvisors and pull down the headliner to see it
Above the headliner, to the front of the sunroof.
Above the headliner, near the rear window
It is just in front of the sunroof, above the headliner.
On the headliner just above the back of the passenger seats. 5.25"
drivers side dash board right above the hood. look where your drivers side mirror attaches to the body, then work your way across the hood looking where the glass meets the body
Its in the headliner above the rear door. The cover on it pops right off.
From the drivers seat (USA), it is left of the steering column and looking from under the dash in that area, above the main fuse block.
On my 93, it is right above the drivers side kick panel. If you lay on your back looking up, it is easier to see.
The fuses are located behind the little change cup just above the drivers left knee. You have to remove it to get to the fuses. And there should be a diagram on the back of the little cup.
All Of the above.