head unit help

i need a new head unit in my car and idk what to get...any suggestions? I'm running 4 15"s and 2 sets of components (4 mids 4 tweets, etc.) I have a 95' chevy beretta...Also, i have 2 amps, 1 for subs, 1 for mids and highs, and i need to know how to wire the inputs, like there are 4 wires running from the back of my head unit, 2 red 2 white and each amp has the same ( 2 white 2 red) and idk anything about L and R signals and stuff like that so if anyone can help i would appreciate it

 
ill try the pioneers, but anyway i need to know a little bit about rca's ( red and whites) do some carry more bass signal than others? cause i have 2 amps each have 2 white inputs and 2 red inputs and on my 4 channel i have to switch up the rca's to diffrent inputs and i need to know whats the deal with that, its all a big pain in the ***

 
You have to make sure the head unit you buy has no less than 2 sets of rca outputs. Some only have one others have 2 or three. They will be marked front and rear. You just have to match up the front and rear on the back of the head unit to the front and rear of the amp. The signals should be all the same. Unless you buy a head unit with 3 sets of rca (front rear and sub). Then just run a third set or RCA's to your sub amp and you will be fine.

 
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4Fifteens

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