Just plug the woofer and tweeter into the crossover (each one), then plug the crossovers' +s and -s into 1 channel's + and - for each crossover on the amp and then just plug each of the +s and -s into their own channel on the amp for the coaxial speakers too. Not hard at all - they're all 4 ohm, so there's no wiring up or down or anything. By the way - I hope you're not buying them at crutchfield. Crutchfield is usually about 2x or more expensive then other reputable places. I'd look on SonicElectronix.com - they've got pretty good prices and quick shipping.