P10 Lite Aux Output

[Fudphul]

Ok, so I recently got a JBL Flip 4. The Bluetooth works just fine but I can't connect to it using the an aux cord. When I try, sound only comes out of the phone speaker.

I have tried connecting both my PC and tablet to the speaker using the Aux cord cord and they both work so I am wondering if anyone has any ideas on this.