Amp for Non Bose System.

I have the Standard radio. I know that there is no amp on the rear underside deck like the Bose system, but I was curious if there was another placement for the standard amp.....or is it powered by the head unit.
I did the MP3 install a few days ago, and I looked at the unit. I must say it was something I havent seen before. The unit has the potential for 3 seperate components. the radio tuner is in the middle......and hollowed out on the bottom to except one of the options on the bottom. Like MD player or cassette. The top of course is your CD player...in three flavors...single, 6CD changer or Mp3.
There were no pre outs on the tuner. It looked very thin also,....is there an amp someplace?

 

Bump

 

I think they are the same tuners but I'm not sure.