I will have to look for the email. Call Camera Source tell them you have a Sync2 and are going to upgrade to Sync3 utilizing the 4DTech company.
However you would like the front camera functionality. They would set you up with the equipment. They said it's pretty straight forward plug n play. But you would have to get their 360 degree unit.
If you really wanted to you could setup your truck for 360 degree camera view as well.
Let me know
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I'll call them later this week. I actually wouldn't mind having the 360 camera setup. Just wondering where the extra cameras would be mounted.