My problem with the included LED indicator light is that it lights whenever the Ready Brake lever is actuated. The Jeep brakes may or may not be activated at the same time as the Ready Brake lever.
Heck, you could even leave the brake cable disconnected and the Ready Brake supplied dash light would still indicate brake application. That's why I (and many others) wired the dash light directly to the Jeep brake light switch. A little more difficult install but a more accurate indicator.