OLDBULL8
Good Morning Ya'll.
On the 93 even if you have the tow package, the 7pin receptacle is not mounted. The brake and battery wires are wrapped up in the frame in a harness. Dig them out, one will be blue and the other is black or orange. The Hopkins adapter plugs in for the tail/brake and running lights. You have to hook up all them wires to a 7-pin receptacle. Wiring diagrams are on etrailer. If you don't have the pigtail to hook up a brake controller I have one. $10 + ship. That brake pigtail is usually in the glove box on a new truck.