I have [[https://www.amazon.co.uk/gp/aw/d/B004YEWC22?psc=1&ref=yo_pop_mb_pd&tag=mumsnetforum-21 this]] mic and [[https://www.amazon.co.uk/gp/aw/d/B016MO90GW?psc=1&ref=yo_pop_mb_pd&tag=mumsnetforum-21 this]] speaker. I've plugged the mic into the speaker aux port but it's not making any sound. What am I doing wrong? I need it working for tomorrow!