There are no wiring diagrams available per se but loom diagrams are shown for both pre and post 2014 models within the latest parts manual pdf downloadable
here. With patience to decode colour codes most wiring can be traced through the loom as individual wires are numbered as well.
The relevant pages for your 2013 model are 66 and 67. The individual pages of manual are available to download/view as images
here which may offer slightly higher resolution.
