front end noise while braking

how long has it been since you had brakes done? sounds to me like the pads are probably pretty thin and scraping on the rotors, which probably also are warped or old....unless you had a recent brake job? ceramic pads are noisier than the cheap ones they use from the factory. unless the noise is from the rear of the jeep. they still use a drum style emergency brake, you can get dirt in the drum, or the emergency brake pads ( yes even if you've never once used the e brake) can loosen or flake apart and start to drag on the rotor... but again...really just thing you need a new set of brakes.