I have the BOSE radio set-up in my 94 Z28. Where is the stock AMP at?

I cant turn my Alpine deck past 3 because the volume is too loud. I need to bypass the stock AMP. I am hoping I can just "jump" the wires instead of wiring all new wires.

 

There are infact two stock amps. Im not sure of their location but when i wired my amp/sub i didnt bother removing them. I wired my amp up to my deck and the sub to the amp and left my head unit wired to my speakers.