About 7 Pin to 4 Pin Trailer Adapter
You have agreed to help Grandma move, and you even rented a little trailer for the occasion; but here is a quandary: Your car has a 7-pin round connector, but the trailer has a flat 4-pin plug. The two connectors are not compatible, so if you want to help Grandma get across town with her precious ceramic ornaments, you need a 7-pin to 4-pin trailer adapter. This adapter is an incredibly simple device that usually has durable nylon housing, and bridges the two incompatible connectors. First, attach the adapter to the 7-pin connector on your tow vehicle, which may involve the installation of a fixing bracket for some models, and then attach the trailer to the other end of the adapter. You now have a strong connection, and a usable trailer, without the need for any rewiring. Find a suitable 7-pin to 4-pin trailer adapter in the large inventory on eBay, and you can pull almost any trailer with your car, regardless of what the connectors are like.