Securing your phone in the controller question???

[JoeCec]

Is there a product or solution that securely locks your phone into the controller? I'm talking can stay mounted through heavy off road mountain and dirt biking?

I am looking for a solution that doesn't take all functionality away either. The phone in question is Samsung Note 5

 

[tcope]

Should lock just fine in the existing holder. If not, rubber bands, hook and loop, Gorilla tape, etc.