How to hook up boat trailer lights to a car?

This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. Demonstrating resourcefulness in a hip, Renaissance man-like fashion, he employs his knowledge of science, technology and outdoorsmanship to resolve what are often life or death crises. Most often his ingenuity is put to the test as he faces imminent doom with little to no time or specialized resources with which to work (though at times it does seem he almost always has a Swiss Army knife and a roll of duct tape with him).