My '95 Legacy fan control has just 2 speeds now, high and off, and needs to be replaced. My question is, how much of the dash do I have to tear out to get to the control? It looks like maybe I can just pull the small panel that the control is mounted on (I hope!)? Thanks.

You likely need a to replace a resistor pack (or repair the old one if it's just cracked solder). That part is inserted into AC evaporator case, for cooling, and held by a flange with two screws. For access, remove the glove box and the reinforcement stamping behind, if present.