Desperation of Quiet

I picked up a Roboquad toy-robot and started looking for hacks that very night. I was bothered by the lack of volume control. Cracking open the case, I found enough space inside to replace the back LED with a switched potentiometer. It was easy to find the speaker wires since the circuit-board is well labeled. It would've been simpler to disconnect the speaker, but I decided I liked some sound.

I removed the LED and drilled out enough material to make room for the Radio-Shack audio pot. On the front I found the black and yellow speaker wires following from the yellow terminal, spliced the pot into the yellow, tested, soldered and applied red heat-shrink tubing. I didn't have any trouble running my new wires around to the back. It works great; now the volume is adjustable - whew.

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