trailer brake controller
Tasca is a ford oem parts dealer, so it fits 100% as it's the same part you'd get if you had bought it from the factory.
http://www.ebay.com/itm/Genuine-OEM-...3D161550839262
Looking at this one posted on ebay, you remove the empty plastic thing in that location and the connector is plugged in the back. Plug it into the TBC and snap it into the same slot. Use FORScan to enable it.
http://www.ebay.com/itm/Genuine-OEM-...3D161550839262
http://www.ebay.com/itm/Genuine-OEM-...3D161550839262






