Canon 10 D remote shutter pin designation

Does anyone know or have the pin designation for the Canon 10D remote shutter, I need to make a bite switch as a remote to mount the camera on a helmet while skydiving.
A schematic will do also,

Thanks,

JP

This is what I was able to determine using my VOM on the remote release.

Looking at the pins on the 10D (Sorry, have to use dots to position the pins correctly in text):

......o 3

2 o.....o 1

1 = Shutter depressed halfway
2 = Shutter depressed fully (1 is also closed when 2 is closed)
3 = Common

NOTE: I'm not 100% certain about the pin designations so you'll have to try it out to make sure.