4-Channel amp installation help

[Trevaughn]

I want to get a 4-Channel Amp for my speakers, but my current head unit only has one preamp output. Is there a way I could install the amp without needing more preamp outputs? If so, how would I do it?

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[mylows10 5,000+ posts]

Sup trevaughn ? It can be done with splitters unless the amp you get has a pass tru but most decks with only one set of rcas it's for a sub out. You'll need to check the manual. Could also use an eq or loc to do what you need