DANIEL W It sounds like you do not currently have a compass in the console. If that is the case, then yes, remove the cover/ring. Removing the cover/ring and installing the compass will be slightly easier if you can warm the console rubber slightly. Caution, don't overheat things. Water warm to the touch works okay. Then pry out the cover/ring or old compass. Be careful not to damage the console. The line up the new compass in the hole. There are notches in the hole and raised sections on the clear/white part of the compass so that it will only go in one way. The compass lubber line should be aligned with the console. It is a very tight fit and that is all that holds it in place. I have an Aeris Atmos AI, but the same compass is used. It fits well and in the 5 years I've had mine, no problems with it coming out. Even after I've replaced the broken compass.
Glenn G Thanks Daniel.Very helpful tips.