What's up all, new to this site. I just bought the 08 SI sedan with nav. I was wondering if anyone has added a back up camerea into the stock nav system? I don't want to add some cheese ball aftermarket thing into the mirror, I want it to look stock. Someone from another site said that they are not sure if it will work because they SI nav has a abnormal refresh rate. Has anyone heard of a way to install a camerea inot this nav?