Thanks for your help particlewave. Came out great.
Also this is the unit that I bought incase anyone else is wanting it. The unit straps over the existing mirror however with a 3d printer a mount was made to attach to existing mount.
CHICOM V21 9.66 inch Mirror Dash Cam Touch Full Screen ; 1080P 170° Full HD Front Camera;1080P 140°Wide Angle Full HD Rear View Camera；Time-Lapse Photography, 24-Hour Parking Monitoring
https://www.amazon.com/CHICOM-140%C2%B0Wide-Camera%EF%BC%9BTime-Lapse-Photography-Monitoring/dp/B07HL3J2XF
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