I have added 2 side view mirror (turn signal activated) camera's to my Ford F-150 off my Rostra 250-8455 5 way cam) 360 degree observation module, and it is great! Here's how I did it..

If you are looking for parts, see us below:
250-8455 kit
https://www.ebay.com/itm/142864518782...
side view mirror cameras
https://www.ebay.com/str/lesscoelectr...


0:00 intro
0:49 using oem location for the cameras
1:39 parts I used
2:30 removing the door panel
6:11 my disclaimer on labor difficulty
9:55 left and right directional wiring for power and video signal
12:24 new wiring in door jamb completed
13:55 testing it out
15:38 how camera looks fully installed