rca 45x17

I have a possibly pre war rca 45x17 tabletop radio. I'd like to hook up a mp3 but I am unsure if it is a hot chasis. I'm very new to this sort of thing. also I need to replace the capacitors since these are the paper ones. I replaced the power cord the other week since the old one was literally crumbling. It works just fine but Id love to listen to its tubed glory with my favorite music while doing homework. Anyone have any suggestions?

It has a power transformer so it's not a hot chassis. It also has a phono input on the back so just do a total recap, plug your player in and flip the switch then turn it on. It doesn't get any easier than that.