Has anyone added an after-market amp/sub to the stock system using the Bazooka subwoofer connection? I ran across a PDF on the web that had the pin-out for the subwoofer connection. Does anyone know if I could wire a line-out converter to this connection? That would save me from having to use t-taps. All I would have to do is run the proper gauge power and ground for the amp. What do you think?