hook up speakers to an amp. HOW?

[nice92explorer]

ok guys i have a ppi amp (pc 425) i got my subs hooked up to the rear inputs, but i have my speakers running off my cd face. because i am running the speakers off the cd face my highs are not as high as i want them and the bass over powers them when im playing a song loud. on my amp i have four slots in the front inputs. they are 2 negative and 2 positives. i bought the sysetem off my brothers friend and when he had it in his car he had his speakers hooked to the amp, but he didnt install his system himself, so he doesnt know how to hook up the speakers to the amp. Will any of you guys help me out here, maybe you guys with ppi amps could chime in, i would really appreciate it guys thanks.!!!

 

[Blrob5]

They may have been hard wired direct from the amp to front speakers. That's the only way I can see that happening. It's not hard to do, but you might want to consider changing the front speakers if they are still factory. They may not be able to handle the power from the amp.