From the other side of the output jack solder the final negative/black to pin 2 and positive/red to pin 3 remembering to tin the pins first.
These wires then solder to your speakers
Finally time to put the chip in same as the chip socket dimple to the JAM Jar text.
** I have removed the chip numbers so stop imitations
You can now put it into an enclosure add a speaker and a battery......