I'm getting a voice prompt for navigation turns on my iPhone, and I don't know how to turn if off!

Grateful for any help you can offer. 

I am using an Epix 2 pro 51mm (v17.23). 

In my settings, all audio prompts are set to off. When I am running a course, I get voice notifications on my iPhone for upcoming turns. I only want the vibrate/turn symbol on my watch, and not a voice speaking to me.

Thanks!