maybe you have a shorted voice coil or pinched wires..
hook your non-working sub to the working side of the amp that will tell if its at least working.
if you happen to have a multimeter the resistance of the sub should be about 3.5 - 4.5 Ohms
The crossover settings are important. you do not want to send high frequencies to the sub.
Not only is it wasting the power of the amp on high frequency you can damage a sub by doing that.
HP=High Pass LP=Low Pass Off=Full Pass. Low Pass allows only low frequencies to pass to the sub.
You think you screwed up the wires, how? can you explain how you have them hooked up?
Im not sure how much knowledge have about car audio so forgive me if im being too simple.
Toreador Red 05' FX4
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