I have an amp and subs from an old setup I had in a former car to install in my C-Max. Since the C-Max is set up very differently from my other vehicle and I am definitely not an expert in this field, I thought I would see if anybody here had any advice. Will adding these items void the warranty in any way? I didn't see anything written, but thought I would ask anyways. Also, where is the best place to hook up the amp, to the battery in the back, fuse box, or tap into something else. I am ready to install but I don't want to screw anything up in the process.