OK, so.....
Is the a/d/s is a 4 channel amp?
Connect the 4 Male RCA:
(Left Front, Right Front, Left Rear, Right Rear)
Of the Eclipse into the 4 matching female RCA that are coming out of the right corner of the amp.
Out of the amp with the gold speaker wires to each crossover input. + and -.
Out of the crossover Lo, High, into each corresponding separate, +, and -.
IMO the speaker outs of the head unit directly to the speakers was probably a compromise somewhere along the way, or you had something different happening before, and you should NOT have any speaker outs of the head unit being used.
IF what you have on the table there is everything you plan on using.
My $.03.
