Can you show me a wire diagram on how to wire 3 subs to a two channel amp?

I sometimes use this site if I forget how to wire up subwoofers. Just pick the number of subs you have and the ohms it will tell you what the impedances needs to be there are also other great tool to use as well. I see you didn’t say what the ohms were so try this out. Remember to chose the right amp needed so the woofers and the amps ohms mach up. http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=1&I=12 Hope that helps!

http://www.crutchfield.com/S-4l9WBbXon1v/Learn/learningcenter/car/subwoofers_wiring.html http://www.the12volt.com/caraudio/woofer_configurations.asp

Impossible without blowing the amp, unless you use a digital bridge. 2 channel amps can only support 4 ohm load or higher. Wiring 3 speakers into a 2 channel amp would put 1 speaker on each channel, and 1 as a bridged, and would put the amp under a 2 ohm load.