answer is at this link
not a compass but is done the same way
http://www.lostkjs.com/forum/phpBB2/viewtopic.php?t=33262
how do i remove Chevy aveo 2006 shifter knob
Loosen the Jam nut on the bottom of the know CW and then turn the knob CCW..
The shifter knob on a 1995 Chevy Cavalier is thread on. To remove it just spin the knob counter clockwise until it comes off.
Remove shift release button off the top of the shifter, inside there is a small snap ring. Remove the snap ring and lift the shifter knob off.
carefully pop out the shifter button then remove the snap ring
Remove the shifter knob. Remove the shifting linkage. Remove the shifter retaining bolt. Reverse the process to install the new shifter.
The shifter knob has a slot in the leather about halfway down. In that slot is a u shaped clip. pull it out and lift the knob as an assembly.
twist it to the left
Get a pair of pliers and grip the lower part of the shifter part - turning toward the left. It may be a little hard at first - but stay with it. If the shifter ever breaks away from the inner core ... and it can happen ... be sure that you have removed the white inner core from the shift column in order to put a new shifter knob on.
remove it
Pretty simple, there is a black turn knob at the bottom of the shifter, just turn this knob counter-clockwise to loosen, then you pull the shifter knob straight up and off.
The top of the shifter knob.