I have a 24" trike that I want to put a house speaker on,what can ! use for a power source, and what can i use for a source of sound??help me out, im new at this  

I am trying to figure this out too.  

I was going to do the same on my sons bike but he didn't want it.
I've never done it before but I 'm sure I can.
I was going to use a deepcycle battery for power.
That's like a wheelchair battery. They are not cheap.
A step by step is asking a whole lot.  

i need to figure out what battery to use? maybe an electric scooter battery cause it has a charger  

That's a good question