So i am putting 2 12s in the back of my ext cab. But i have no clue how to run RCA cables from the factory stereo to my amp. I know i need an adapter but as far as what adapter and how to hook it up im in the dark.Any help or links would be greatly appreciated.

I've decided to sell my stock radio out of my truck... It has about 3 years of use from 2009 (manufacture date) to 2012 when I purchased the truck. All buttons illuminate, none are faded, and there are no flaws in the LCD display. It is in VERY good condition! I pulled it out and put in another...