This is an update to my last post about installing the Compass-Nav navigation system with all the add-ons. The system is working great and I finally added the front jog shuttle control option that came with the unit. It looks and works great and is a great improvement to the car. I installed the unit months ago but the jog shuttle switch did not fit into the US Optima, and to install it I had to buy the Korean center console on ebay and replace the one that came with the car. Installation was fairly easy and the switch and plate snaped right in place.