[DeTomaso] Heater fan speeds

[Jon Haas]

Heater / A/C fan speed control using advanced and very efficient electronic
motor control. Stock resistor not needed,  infinity adjust fan motor speed
of both switch positions, retains original switch. Additional speed for A/C
automatically when A/C switch is turned on.

http://www.pantera-electronics.com/consol_inter.html

http://www.youtube.com/watch?v=fz7O1yeZeTQ&feature=channel_page