Just purchased a 2007 Outlook w/ nav. 0% financing made it a no brainer but we gave up the rear view cam that comes with the 2008 nav system. Would really like to retrofit rear view cam into our Outlook if that is possible. I noticed a prior post that mentioned this but thread did not go anywhere. Has anyone looked into this? Seems it may be possible unless the '08 nav sys is different than '07. I have tried my local Saturn dealer and on-line assistance w/ Saturn but so far so one seems to know if it is possible or not.