I’d like to do the same with mine, did you manage to get lights hooked up to it?
I'm powering my lights from the EFD2 using one of these
With a 3A in line fuse in the positive wire
Inline Splashproof Standard Blade Fuse Holder
Splashproof in-line single fuse holder for standard automotive blade fuses. Available in three current ratings / cable sizes.
www.12voltplanet.co.uk
For the USB I'm using extension leads as roadtripper suggests above. I tried stripping USB leads and running 12V wiring. Didn't work. Had to bite the bullet and buy expensive USB extension leads