OTG

IGI OTG 
OTG allows the winch camera user to view the live view camera feed direct to your device (phone/tablet) with the use of a downloaded app you can then have a split screen with live view and your boat app.
**Android users only**
Apps 
.Next camera 
.Usb camera viewer 
https://play.google.com/store/apps/details?id=com.homesoft.usb.camera