97' silverado 1500 z71 rearview thermometer problem
 

hey so i was wondering if anybody could help me ? :) i just recently purchased a 97 silverado 1500 z71, and im having a little bit of a problem figuring out the rearview mirror. how do i switch the display from the compass to the thermometer? ive tried everything and cant figure it out, if somebody could help that would be greatly appreciated :)
-riley