how to attach a Usb mp3 Module inside 2.1 home theatre ?

Please Provide instructions in details

Most of these stereo systems have a 3.5mm jack aux input. So you can go get a 3.5mm male to male cable and plug it right in. If it only has the yellow and red connector you can by a cable that gives you your 3.5mm jack for the player and the red and yellow RCA connectors for the stereo end.

If you have to have it inside the but the right cable, cut the ends off and solder it to the aux connections from inside the unit. Similar to what i did upgrading my mixed with a USB audio device.

https://www.instructables.com/id/Audio-Mixer-Upgrad...