97 P71 Turn Signal & AC problem

I have a 97 P71 that I love. However I am at a lost for a wiring problem that is currently showing it's ugly head. When I turn on my AC I lose both the AC and turn signals. The AC continues to blow but only hot air. We have tried putting in inline fuses on the box behind the glove box, alternator, the fuse box under the driver side. Also on the AC unit itself. We haven't blown any of those. Before we could change the fuse and would have them again for a while. But now that is not even possible.

I've checked everywhere and no seems to be able to help me. Has anyone else had this kind of problem?

Thanks, I don't want to drive it until I get the turn signals again and I really like the car.