This new amp I bought today is a bit longer than my old one. It won't fit between the back of the wheel hump and the corner of the tailgate.

I'm thinking of mounting it to the box itself and then making those easy push type terminals on the flat tire kit since there is a lot of free space behind it.

Any other suggestions? I kind of want to do a custom semi-show quality install...but I wouldn't know where to start. Maybe a custom plexi-glass box on the sub box itself for the amp?

Here are some pictures of what I have going on now.

The amp is a fusion power plant pp-am1500.