Vampirox

Any one knows??? Please help me with this... The plug is big so it has to have an important reason to be there. Best regards.

Hi to everybody, i am new here and i am installing a trailer hitch on my Edge SEL 2009. I would like to now what for is the electronic plug that is located under the rear bumpper... is it to plug the electronics conections for the towing hintch?? or for some thing else, like to install the reverse sensors?? thanks for your prompt reply. best regards!