I just picked up a 2011 X5 35D tonight. I want to set up a tow hitch on it for taking my race car to the track. I have do e tons of reading so far on it and still have some questions. I plan on ordering this oem kit with wiring...

https://www.ecstuning.com/b-genuine-...t/71602156525/

how straight forward is the wiring portion of it? Do all these cars need to be coded after the instal? What other kits have everyone used?