I’m trying to attach some CQRobot speakers to my UNO and AdaFruit MP3 Shield, and – as everything came without instructions – THINK I need to attach the speaker to DIGITAL 3 and GND, but they already have soldered points (where the MP3 Shield is soldered to the UNO).
Do I just solder the speaker wires on top of the existing solder at DIGITAL 3 and GND? Or use the adjacent (inner?) points a few mm from DIGITAL 3 and GND instead?
Or am I supposed to solder these to the SPKR points by the headphone jack?