changoo

Hi, Im adding 2 Orion 10" subwoofers and a soundstream mono block amp to my 2003 TT coupe with the bose concert radio. I have ran the power wire and the ground, and have removed the interior panels to access the factory bose radio. I want to splice the subwoofer RCA cables and remote wire into the audio cables before the factory bose amp, but I cannot find any pin diagrams for my particular year and bose amplifier. I just need to know where to wire the + and - RCA's and remote. Ive linked to 2 pictures of the factory bose amp with the series of 4 wiring harnesses on the side. If you know which wires I need to tap into please respond.

Thanks