So I finally dug up my MTX 4-channel amp and my 2/4 channel crossover from boxes (after all this moving)..

What is best way to hook up this 4-channel amp to factory speakers, while locating the amp in the rear of the Jeep? I'm assuming to run 4 pairs of speaker cable from the amp to the headunit, and hooking it up to the HU harness.

Any thoughts? I've never setup a 4-channel amp on factory speakers before.