connect Samsung Galaxy S5 to Garmin 76cx?

[Paulieh01]

I'd like to be able to hooker these up, but it's been no go. The Garmin USB interface cable works AOK into the desktop puter. Same for the Samsung USB 3.0 cable.

What's my prob here? I've tried to connect em with a lil ebay gizmo...
USB 2.0 A Female to USB A Female Coupler Connector Adapter
USB 2 0 A Female to USB A Female Coupler Connector Adapter Buy 2 Get 1 Free | eBay

 

[Paulieh01]

Hokay, I've made some progress. With my new OTG adapter these guys can connect, kinda sorta.

How do ya enable USB permission? Apparently it needs to be on, but I cain't find it...on my android 5.1.1