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the ignition sw is turning off the fuse box, therefore the blower and radio go off, too. but that's a different side of the ignition sw that goes to fuse 1, 2 and 3. fuses 11, 12 and 13 are in the same circuit as the ignition system. the blue wire leaves the ignition sw, powers the 3 fuses with the fuse box acting as a jumper to send power to the engine harness, again, a blue wire. the turn signals are in this part of the fuse box, fuse 13. something is keeping the power on the blue wire with the engine off, this is backfeeding into the fuse box through the jumper and this lets then turn signals try to work.

the fuse box has color codes for the wires attached to it. 11 is blue, 12 is blue/yellow and 13 is blue/red. unplug all that stuff and see if the problem clears up. the blue wires from the ignition sw and out to the coil will be in there, but they should be closet to the body of the car instead of the outer portion of the box. look at where the blue/yellow and the blue/red are plugged in at the box, you'll see how to avoid unplugging the blue power wire from the box. still trying, chuck.