yup vigo is pretty close. I checked out the setup on a couple different cars today, stratus pt caravan neon. They all seem to work the same way. All of them only have prnd then +/-. I dont think any of them had od though. I actually pulled 1 apart and saw so interesting stuff. They have a black box that the shifter slides in so u can go +/-. It was ,ok if u pull your gear selector to d then 1 more click and your in 2, but on thiers ur in a/s. So what I was thinking is if u can put ur car in 2 or L now and drive like that and shift at redline, all u got to do is prevent it from shifting by putting the switch on the signal wires to up shift and down shift. That should work great. However if u drive in 2 now ur car will shift way before red in 1st gear, so I think u have to use L as the a/s mode. I couldn't find anything what pin is for a/s, But I think it is Just the L postion and 2 switchs. I could follow the wire cause it went into a big connector then a harness and through the dash. Sorry for so long but Hope it helps