My tow vehicle for a 2004 Outback (28RLS) is a 2001 Chevy 2500HD Silverado with a tow package. Do I need to install a brake controller to maximize the use of the electric brakes on the camper trailer? Am I getting no braking assistance from the camper trailer without the brake controller installation? If the controller is needed, could someone recommend a model that would meet my needs? Assistance would be much appreciated. wfrierson