... Wouldn't there be enough electrical power in this that you might wanna cover that in electrical tape?

I've not jerry rigged an amp before, but I did once build a ramshackle 'home media pc' for some roommates once, out of old spare pc parts i had lying around, using the box their xbox360 came in as a 'case'.

Got a paperclip with some rubberized covering, snipped a bit off the two ends, and then you had to short the right two pins on the ... whatever the socket is that would normally go to the front io panel is, you had to do that to turn it on lol.