Hey guys -
I did the following mod to install an electric trailer brake controller in my 2007 Access Cab and I thought you guys would be interested as I think it is a pretty good solution. First, I found this very small trailer brake controller on Amazon...
It's a pretty simple unit, but it is solid state and can be mounted at any angle.
Next, I cut out the back of the drop down change tray in front of the fuse panel to allow the controller to sit all the way down into the change tray to allow the tray to close. See the first picture to see how I cut out the tray.
Now all there is to it is to slip the controller into the tray, wire the controller up to the factory harness, and install.
After the install, I towed my 17' twin axle equipment trailer with my tractor from SC to NH. It worked great, and I don't notice anything lacking with this controller. Sure, there are more complex brake controllers, but this one worked fine, and I felt safe towing the 6000lb load over 1000 miles.