Oh, this is annoying! I had to replace the heater fan on my old '79 Volvo 244 TWICE (just like almost everything else on that car), and it was located in a spot behind the center console that was as far as it possibly could be from any point of reasonable access! It was an all-day (and 4-knuckle) project to do, it, too!
And it's just a couple of screws to loosen to get at the VX's heater, huh? No fair.