What is the best route to adding a USB power source to a guitar amplifier?
So I need an easier power source for the USB dongle. I had imagined a coupler that would sit between the amp and its power cable. I could frankenstein a USB-wall-outlet connector into this coupler to provide a USB power source close to the aux input. However it may be easier to find a 5V source inside the amp and just add a usb port. I'm not sure, which is why I'm creating this post.