I parallel park all the time (I live in Boston) and never had an issue with my old car but in the TL rear visibility is quite dismal so I'd like to add a rearview camera. My car does not have navigation so I looked into bluetooth/Android solutions but there doesn't seem to be any good ones. I'm not interested in adding a big screen to the car anyways but the replacement rearview mirrors with built-in screens caught my eye. Has anyone tried one and/or can recommend one?

Basically one of these:

 

This may be of interest to you

Android Rear View Mirror Dashcam - Civinfo

 

Dude, I have been to Boston! I have seen them drive! I have seen the parking. Just back that ish up! The OEM parking sensors would work nicely though