I had a quick question about my options with my hu-613. Obviously, it is not for the audiphile, but I was wondering if it had the ability to install a sub and amp to it. It probably doesn't, but I would just like to make sure. Also, if it doesn't, what would you all suggest for a replacement hu. I know this is a broad question, but I would like something that has the ability to have a sub and amp hooked up to it, and looking to spend around $250.

Thanks.

By the way, it is a 2004 S60.