Q5 TDI trailer hitch and wiring
 

Hi folks... new to forum, so thanks in advance. Looking to buy 2015 Q5 TDI Technik (non- SLine)

I tow a boat. This Q5 does NOT have a hitch, but I've found a hitch (part: 8R0 800 491 A) that seems to have the hardware + wiring. Is there a plug somewhere in the back of the car to simply connect the wires, or does my car need to be equipped with a factory tow package?

Thank you.