Sony SANS Wi-Fi Speakers Setup

Hey everyone! I’ve been trying to set up my new Sony SANS Wi-Fi speakers, and I’m running into a bit of a challenge. I’ve got all my music stored on a network drive (My Book Live), and I want to stream it directly to my speakers. The issue is, my Windows phone doesn’t seem to have any apps that can push music to the speakers. I’ve tried a few things, but nothing’s worked yet. I was thinking maybe creating a smartapp remote could help, but I’m not sure how feasible that is. Does anyone have any suggestions or workarounds? I’d love to avoid having to switch to an Android or iPhone if possible! Any advice would be greatly appreciated. Cheers!