2013 Lacrosse Backup Brackets Missing

I have a 2013 Buick Lacrosse. This car does have a Backup Camera but Buick choose to not include the Backup Bracket option in 2013. I would really like to have Backup Brackets. What would I have to do to gain that option? Reprogram? Replace the radio? If replace, what year radio would fit? Thanks

Looking around it looks like this was an issue with 2013 models only. People with 2012 say they have them, with 2014 say they have them, but everyone with 2013 models say they don't have them and have no way to turn them on. I don't even know if you could install a different year radio because the settings may be in the BCM itself. An aftermarket camera may solve the issue, but there is no guarantee.