@ Angus, no it's not easy to see or find. It is taped up quite tight to the wiring harness.
It is (on mine anyway 2013) under the right hand side of the panels, very close to the right hand indicator. If you're looking for it be aware that it could have a blank male part fitted to it with what looks like two black bungs.
The bit of wiring with the plug and voltmeter is 6/8" so with that and where I have fitted the voltmeter you can guess where it is, roughly.
Get yourself a bigpie, you can find him on here, relay fuse unit to connect your accessories too, wired off the ignition, relay with four fused outlets. excellent bit of kit.
These photos might help...................