How do i run a stereo power wire to a battery safely?

I have an aftermarket radio i want to install but the car is a 1971 plymouth scamp and the old power wire does not work. How do i run a power wire and a memory wire to the battery?How do i run a stereo power wire to a battery safely?just get a 5 amp inline fuse and some wire. run the wire from the power wire on the back of the radio to the inline fuse then from the fuse to the positive battery post. you can get the fuse and wire at autozone or a store like that for around 5-10 bucks. make sure you unhook the battery before you start, but don't worry about shocking yourself, it's only 12 volts and it won't kill you unless you have a pacemaker.How do i run a stereo power wire to a battery safely?check crutchfield.com for a wiring adapter.How do i run a stereo power wire to a battery safely?It would be easier to use an inline fuse and hook that into the left side of a fuse on the fuse panel.