I have a complicated question that I could not find on here b/c the search "failed". OK, My question is, can you hook an amp to all you interior speakers, without using a cd player as a input device? for example, I take my mp3 player, go to Fry's and get a cable that plugs into my headphone jack on the mp3, but then splices out into 2 rca jacks.. I guess you can just hook the amp up to a switch, and just turn it on whenever you want, considering this is a setup that would not feature a cd player or a "headunit" in the car... thanks, H-T

 

First of all, don't be surprised if your thread is locked because you suck at making titles...

Anyways, yes you can, but chances are it'll sound like *****.

You'll need a 4 channel amp, and the appropriate connections (as you mentioned).

However, you can almost always just purchase a relatively inexpensive aux-input adapter for your factory radio.... (~$50)