Something like this https://www.amazon.com/Campro-Stereo-3-5mm-Female-Adaptor/dp/B00CODJFIE
would probably do the trick. I don't know enough on how much power the lav mic's need, so hopefully the +48V phantom isn't going to be a problem if you accidentally turn it on, but in theory I think the phoria should do the trick. Fingers crossed!