Fitting 13 pin pf Jones dedicated wiring trailer plug to Kia Sportage mk4 2016 

Hi, no didn’t have to do anything it just worked after being wired in.

Glad to hear it!

Should be fine (well it actually is fine as it’s been a year since I did this). The wire is not passing under any of the touch points/pressure points of the rear base, infact you can tuck it forward enough it clear of the base.