EDIT: All info below and more can be found at my web, in the wiring section.
Here is a couple replys from the last 2-days on a often asked question about my home made 1st gear lock out on the trans. If this dosen't make sense let me know and I would be glad to clarify. I don't have it drawn up (hint/hint), and also will add a description on the dual stage with home made lock out when I get a chance.
First description.
Just tap into your wire running to the pedal WOT micro sw. Remember, wire it opposite (you'll need a 3-prong sw from radio hack), meaning when pedal wot micro sw in 1st gear in mashed to the floor and making contact or closed, the 1st gear lock out micro sw on your trans is open. Then when you shift out of first gear the pedal micro sw acts as normal because both sws are now closed, or making contact. This is for a single stage set up. Wiring using this method in a dual stage set-up is a little differnt. Hope this makes sense.
Here is the pic for anyone reading along.
Second description worded a little different.
It's a three prong type WOT micro sw from radio hack. You can wire it inline with standard wot under pedal, but it must be backwards, and thus three prongs instead of two. Meaning, when in 1st gear it will still break the connection going to pedal wot sw and as soon as you shift out of 1st then standard wot sw works as normal. This is for a single stage, and I have mine wired up to keep my 2nd stage out of 1st gear. Hope this makes sense.
Robert
Edit: Here's another way to mount sw on the C5. Glued directly onto the rubber isolater, and stock shifter.
