Pioneer Stereo System Setup Info

Hey everyone... Im a real newb when it comes to car stereo systems.. so i was hoping some of you friendly folks can help me out. I have recently aquired an 86' Mazda 323 with a nice sound system in it... but it is not setup correctly. The system consists of: Pioneer Premier Series KEX-M800 Head Unit Pioneer EQ-6500 Equilizer 2x Pioneer GM-H120 4Channel Bridgeable Amplifiers Which then lead to 2x 4" Kenwood Front Speakers, 2x Sony 6x9 Rear Speakers and a Kenwood 10" Subwoofer. My problem is that #1, You can hardly hear the front speakers, even when the balance is 100% towards the front and the volume is on full, and #2, there is alot of static in the system. Now, i was wondering if you could please suggest the best way to re-wire this system. Like, what should i plug into each sub and where should i use the bridging and so on. I think the reason for the static is most probably the speaker wires running along beside the positive wires so there is a bit of interference, so that may be easy to fix. I do not have any of the manuals for the amps, head or equiliser. Thanks in advance *Silbo*

Thanks... i think it is the RCA's that are running along side of the positive cable. Instead of using gain on the Amps... which they dont have... will the Equilizer do the same thing? I think the Amps are just power amps. This system is about 10 Years old. Im in Sydney actually.... so im closer to Perth than others... lol