I hade to fix mine because I could not find a used one here in Guatemala. It is not hard to pull out. Basically you need like two small screwdrivers. There are four little plastic clips that you have to undue. How to explain? They are located a little bit within the area of where the actual vent is, the vent that moves up and down. If you move it and look there you will see what I mean.
After I got the clips pulled a little (I had to leave the little screwdrivers in place so that they did not clip back into position) I pulled the vent out. I had to pull a little hard to get it to come out but be careful as to not break it.
After I pulled the vent, I drilled a hole in the hole where the vent lever used to be attached. I then just screwed in a small sheet metal screw and the lever now works and have not had any problems.
Insanity: doing the same thing over and over again and expecting different results.
2006 - Suzuki Gran Vitara (2.0 L fully equipped) Like this car so far except for trying to put on the seatbelt.
1988 - 190e - 2.3L - 172K miles (It now belongs to the exwife)
1999 - Chevy Blazer LS Fully Equiped - killed it June 2006
2001 - Honda Civic EX - 68K miles (sold June 2004)
1963 - 220S - Dual Carb 6 cyl. (sold)
1994 - Yamaha WaveRaider (fun to ride)