Anyone have any experience replacing the "position switch" located in the manual transmission of a 2K? My SES light came on and the code indicated that it was the "position switch"? The switch is apparently located in the side of the transmission. Anyone have any instructions on the best way to remove the switch and get to the electrical plug located in the engine bay (the plug seems to be quite buried)?

Also, anyone understand the GL-4 rating required for gear oil by the owner's manual? I see a lot of brands meeting GL-5, but not many with a GL-4 rating. Why is this?