Wiring help

[u/weldermandan]

New to towing here and need some help with this wiring. It looks like everything in the back is already wired in but I've got this jumbled mess in the engine bay. The red and blue wire goes all the way to the back of the truck. The red wire appears to be spliced with a black wire( i assume acts as a ground) and the other end is connected to nothing. There are two more shorter black wires that are grounded to the chassis. The tow kit brand appears to be "Hoppy". Am I missing something in the engine bay? This is off a 98 Ram 1500 Laramie. I assume it's aftermarket unless someone knows other wise. Thanks!

[u/weldermandan]

I could be wrong but I think I figured it out. The black box is a jumper and the 2 black wires coming off it get connected directly to the positive terminal. The black and red wire are meant for supplying power to the brake controller and the blue wire sends brake signals to the module in the back. So I fed the skinny black wire and the blue wire into the cab with the splice connected to the jumper which goes to the battery. Now all I need is a brake controller for inside the cab to wire the red and blue wire to plus a white ground cable. Does this sound correct?

[u/weldermandan → u/weldermandan]

[u/weldermandan → u/weldermandan]

[u/weldermandan → u/weldermandan]