Audio Systems: which amp, sony mex 1gp, rockford fosgate t162c

Question
I have an 07 malibu vtx my head unit is sony mex 1gp 4 rockford fosgate t162c speakers 2 on dash 2 near back and 2 titan alpha 1 tower speakers. I have no clue on what type or how many channels I should have to power my system. I want to be able to fade back to rear and tower or just low interior loud on tower  

Answer
Hi Rudy,

Sorry, but specific questions about particular models of cars and/or audio systems for them is impossible for any "expert" to answer, as I don't own that audio equipment.  Research on the Web using search engines or call the manufacturer for assistance.  Cheers, Wink