Well, I've only had mine for a couple weeks and haven't had any time to read the manual in depth, but for operating the thing, I didn't need the manual. Pretty simple and straight forward but I'm a bit of a geek too (at least that's what my wife says).
When I want to listen to music on the USB, I plug it in. Push the arrow to skip or move back etc...source button to switch to FM/AM/USB etc. Might take you 2 minutes in the manual to figure out how to set the time or change the light color.