dvd player install, please help

[brrrnntsshhhh]

i am currently trying to install a dvd player system into my car, i do not have a screen yet but i want to play the mp3's off of my speakers. i currently have this for the dvd player and i have this for a surround processor i want to make this work. to my understanding i need an amp with rca. can i use my stock amp even though it doesnt have rca connections or is there a way around this? please help

 

[Defiant]

The stock amp is okay for the stock Infinity system. Beyond that, it's not much worth the bother.