Update to Latest Backup Camera

2013 Tundra......Changed out original Toyota A/V Unit and camera which was on right side of the rear view mirror (very small), to Pioneer AV 2500 and changed camera as well, 4 years ago. Now, I see the newer cars/trucks have much better cameras that are wide angle and guide lines show intended direction of backing direction. Any advice on which company makes the best units and cameras for what I am looking for, without breaking the bank or having to change out my dash.
Thank you

 

The vehicles that have the guide lines that move are generally part of the CANbus system and are tied to a steering sensor- not an inexpensive install...

 

Thanks for your reply. Kind of thought it was something like that.