Can I install an amp on a 2010 Stock stereo?

[curiousgeoff]

I know that its better to get a new system.. but to be honest I don't mind the one I have. I just want to install a Sub and amp that my brother gave me with the stereo that came with.

If at all possible, are there any wiring diagrams? my brother is a ford mechanic, and hes sort of teaching me the ropes (i am a total newb.) but he cant figure out where to wire the amp into the stereo.. or if its even possible. an amp output or whatever.

we had the whole thing pulled apart today. so its mainly just tips/videos which might explain the wiring part..?

thanks in advance. appreciate the help/patience from you guys.