I done this a little while ago, Heres my write up from my blog. I just used a normal aftermarket manual knob, seems to work ok, I even later on made it into a short shift auto with a new boot, Unfortuntly i don;t have a write up for the short shift but the idea is you cut the black shaft without cutting the inner shaft (Pita) and then cut the inner shaft but leave some sticking out the top so it can still be pushed down to change position.
What you will need
- An aftermarket manual gear knob ( This part is needed as the manual knob won't work)
- the plastic surround from a manual
- Phillips screw driver
- wire cutters
- about 15 minutes
Start by removing the two screws under the center console
Pull up with your finger in the hand break sleeve
This bit of trim pops up and out out, put the gear selector in drive to help
Remove the screws located on either side of the gear selector base and pull the selector up
If you have the power button you will have to cut the wires, you can wire it up to another switch later but for now i'm leaving mine disconnected.
Remove the four screws holding down the gear selector housing.
This is what you'll be left with, the yellow button is pushed down to allow the selector to move
Pop on your aftermarket knob and original boot from the manual and it should slip right on.
To change out of park you should be able to push down on the knob and change like normal