/diy/ - Do It Yourself

Working on animated Halloween decorations.
I want to amplify these things, using guitar / stereo amps and patch cords I have laying around.

Pic related is one of the circuit boards. Yellow to left is puting out 3W on 8 ohm speaker. IC2 controls it. I could probably pull unamplified power from that IC, but I don't trust my soldering / electronic skills enough to try it.

What's the best / safest way to pull signal off the amplified speaker? I'm not going for audiophile quality, just want something I can amplify over the voices of all the chattering neighborhood kids.

Once I get the circuits I'll add 1/4" mono jacks to run signal to the amps.