My happy box wiring wouldn't apply to a 95 anyway. That was on the 93 (works good too!)
Found the missing volume.
1. Remove the passenger side kickpanel above the passenger footwell (below the glovebox).
2. Remove the 10mm bolt from the black bracket that holds the SILVER colored PCM.
3. Spit, curse, and rant as you wiggle that PCM out of it'* tight freaking hole.
4. Now that it'* somewhat accessible, disconnect the negative terminal from the battery.
5. Locate connector D on the PCM. I have no clue what color it is on the 95, as I've never had it out of my SLE. It should have a dark blue wire on position 10. For reference it should also have a dark green wire on 11, Brn/wht on 13, dk grn/wht on 15, tan on 1 and 2, pnk/blk on 4, purple on 3, grn/wht on 12, dk blue on 16, and red/blk on 3. This is to help you identify the right connector. Regardless, wire TEN (10) is dark blue.
6. Get an inline splice. Tie IN to that wire. Do not cut it. You're creating a branch in the circuit.
7. Run that NEW wire branched into pin 10 through a switch, and then to ground (that wire comes in to one contact of the switch, the other contact to ground......any wire going into metal in the passenger compartment).
What you're doing is not waiting for the PCM request for the high speed fans. The PCM controls the ground to the high speed fan relay. You give it that ground when YOU want it.