Cut, splice, and tin five pieces of different colored wire (yellow, white, blue, red and black) that are approximately 3 inches in length. Cut, splice, and tin one piece of wire that is approximately 1 inch in length.

Insert the 1 inch piece of wire into the GND pad on the I2S amp from the front. Then, insert the black piece of wire into the same GND pad from the back. Solder both pieces in place. 

Solder the other end of the 1 inch piece of wire into the GAIN pad on the I2S amp. This sets the gain to 12dB since it is tied to GND.

Solder the remaining four pieces of wire into the LRC, BCLK, DIN and VIN pads on the I2S amp.

Solder the pieces of wire from the I2S amp to the Feather RP2040.

• LRC to pin 11
• BCLK to pin 10
• DIN to pin 9
• GND to GND
• VIN to USB

Solder the terminal block to the speaker output on the I2S amp.