Please note some changes as of 7/8/99, that I've made in the wiring and pin assignments. These changes have made it possible to use just one switch for single to dual axis switching instead of two. In single axis 1. Use of the +5v output of pin #9 instead of pin #8. 2. Pin #6 now connects to the left brake lug instead of the right. 3. Pin #9, instead of pin #8, now connects to the center brake lug.  In dual axis 1. Pin #6 now connects to the left brake lug instead of the right. 2. Pin #11 now connects to the left gas lug instead of the right. Pin Charts Regular Soundcard - Single Axis Pin #1 - (+5 volts DC output from computer) Steering, center lug. Pin #2 - (neg. input from Joystick "A" Button 1) to the NO (normally open) terminal of shifter switch #1 Pin #3 - (0-5 volts input from Joystick "A" X Axis) Steering, left lug.  Pin #4 - (negative ground output from computer) to the COMMON terminals of shifter switches #1 and #2  Pin #5 - (negative ground output from computer) no connection Pin #6 - (0-5 volts input from Joystick "A" Y Axis) Brake, left lug.  Pin #7 - (neg. input from Joystick "A" button 2) to the NO (normally open) terminal of shifter switch #2  Pin #8 - (+5 volts DC output from computer) no connection Pin #9 - (+5 volts DC output from computer) Gas, center lug Pin #10 - (neg. input ) no connection Pin #11 - (0-5 volts input ) no connection Pin #12 - (negative ground output from computer) no connection Pin #13 - (0-5 volts input ) no connection Pin #14 - (neg. input ) no connection Pin #15 - (+5 volts DC output from computer) no connection Regular Soundcard - Dual Axis (clutch wiring added) Pin #1 - (+5 volts DC output from computer) Steering, center lug. Pin #2 - (neg. input from Joystick "A" Button 1) to the NO (normally open) terminal of shifter switch #1 Pin #3 - (0-5 volts input from Joystick "A" X Axis) Steering, left lug.  Pin #4 - (negative ground output from computer) to the COMMON terminals of shifter switches #1 and #2  Pin #5 - (negative ground output from computer) no connection Pin #6 - (0-5 volts input from Joystick "A" Y Axis) Brake, left lug.  Pin #7 - (neg. input from Joystick "A" button 2) to the NO (normally open) terminal of shifter switch #2  Pin #8 - (+5 volts DC output from computer) no connection Pin #9 - (+5 volts DC output from computer) Gas & Brake, center lugs. Pin #10 - (neg. input from Joystick "B" Button 3) (Optional) to one terminal of switch #3  Pin #11 - (0-5 volts input from Joystick "B" X Axis) Gas, left lug. Pin #12 - (negative ground output from computer) (Optional) to common terminals of switches #3 & 4  Pin #13 - (0-5 volts input from Joystick "B" Y Axis) (Clutch, left lug.) Pin #14 - (neg. input from Joystick "B" Button 4) to one terminal of switch #4  Pin #15 - (+5 volts DC output from computer) (Clutch, center lug.) Soundcard with midi port - Soundblaster AWE 64, Gravis Ultrasound and many others Pin #1 - Potentiometer Common lug Joystick "A" Pin #2 - Joystick "A" Button #1  Pin #3 - Joystick "A" X Axis  Pin #4 - Joystick "A" buttons 1&2 Common connection Pin #5 - Joystick "B" buttons 3&4 Common connection Pin #6 - Joystick "A" Y Axis)  Pin #7 - Joystick "A" button #2  Pin #8 - no connection Pin #9 - Potentiometer Common lug Joystick "B" Pin #10 - Joystick "B" button #1  Pin #11 - Joystick "B" X axis  Pin #12 - MIDI TXD  Pin #13 - Joystick "B" Y axis  Pin #14 - Joystick "B" button #2  Pin #15 - MIDI RXD