The Curt Trailer Hitch # C11349 does not come with wiring for your 2014 Nissan Sentra SV but if you are needing wiring you'll just need the Curt # C56205.
To complete your towing setup you'll also need the Curt Ball Mount # C45521 with the Pin & Clip # F-4 and either a 1-7/8" # A-80 or 2" # A-82 hitch ball.
We haven't had the chance to install any of these parts yet but I'm linking the instructions for you to check out. view full answer...