Yes, I know, Another Stereo Question?

OK, I did admit that I wasn't a stereo guru in another post, so here is my next question.

I have a bazooka amp that I picked up yesterday and did some of the wiring last night. My question is this, I want to have a switch on it so I can turn it off when I am not riding, and just hear the speakers at a lower volume. I used a relay, but couldn't get it to work. The remote has to be plugged in for the amp to work, but can I still use a switch like I want to, or am I just stuck with turning down the volume everytime?

I know part of the problem was with my switch wiring, and I will work on that, but I just need to know if I am waisting my time with the switch idea.