I am trying to learn how to install A trailer brake controller for my Subaru Forester 2000 s series. also open to any advice on traveling across the country pulling a travel trailer. The trailer weighs 2000 lbs

There will be instructions with the controller (assuming you buy new) for how to connect the wiring and set it up.

 

2000 lbs is a pretty big chunk to lug around. If the car has an automatic trans I would suggest adding an auxiliary transmission fluid cooler.

how to install a brake controller will be specific to the brand & model of controller - follow the instructions for your model.

If you dont have them (purchased used?) you may be able to find them online by doing a google search for the brand & model you have.

 

basics are:

fused power source (direct from battery)

brake switch tie in (ours had a splicer in the kit)

wiring to rear of car

proper trailer plug in (car side) to get power to the trailer brakes & lights - ours required a round 7 pin connector

 

is the 2000 lbs just the trailer weight (empty)? or is that gross weight (fully loaded)? either way, that is a lot of weight for a Subaru, and I agree with Fairtax - an external tranny cooler could be very helpful.