We offer both 4-pole flat and 7-way RV-style blade trailer connectors for your 2009 Kia Borrego. The correct harness will depend on the way the car was equipped from the factory.
If you do NOT have a factory 7-way socket then you'll use the Curt T-Connector 4-pole harness # C56184. This harness plugs in at your taillights and requires you to splice only one wire for 12V input power that you'll run up to the engine compartment. I linked an article to help you with the routing of that one... view full answer...