Check out Kicker.com and go to the support system. they have wiring diagrams on the site for parallel or series wiring.

Also, the JL Amp is rated at 500 RMS @ 2ohms of resistance, much like Kicker and Rockford amps. So if you wanna get peak performance out of the amp, you need to run the subwoofers in parallel state, or running at 4 ohms you wont get the power or performance you may be looking for. I am assuming the subs are single voice coil as to why the RMS rating is so low. If you need help, I work car stereo sales at Best Buy and I install there too.... the one at the mall. My name is Robert. PM me, I can help.