Subwoofers in a cruiser mopar

My system would probably be kind of weak for the type of music that Princess Valiant listens to. Think there are some nice Bluetooth powered subs now.
My system doesn't draw a lot of power. When using big power amps and subs the wiring circuits are the big problem on old charging systems. Bigger alternator and wiring is required. Adding a couple 50 amp circuits for subs along with the existing loads can fry the wiring on a 35-55 amp charging circuit..