this is interesting but i will give it my best shot...
firstly since you have replaced your pads and rotors, i would rule those out, beacuse sometimes if a rotor is out of round, it can produce a ticking noise of sorts when you press the brake.
what i would check to see if your hubs on both of your front wheels are warped or not beacuse sometimes sound can transfer, in this case i would also check the rear brakes, shoes and drums (unless your model is the special and has the rear disk brakes then i would check the rotors and pads in the back) then i would also check the corresponding wheel hubs to the rear for excessive run out...
i would also inspect the bearings though this is unlikely but possible since your ABS unit is in the sealed wheel bearing assembly and it supposedly sets your ABS light off... and this is how you check, jack up your car front first and put it on jack stands, with tires and wheels on sort of "ROCK" the tire from the 6-12 oclock position (top bottom of tire), then the 3-9 position (side too side of tire), if there is ANY... play fron the 6-12 suspect a bad wheel bearing and replace it, this is a sealed unit with the hub and ABS sensor in it if it has play from the 3-9 position check your tie rod ends as well for play, if there is play on your tie rod ends replace those (however this will probably not solve your noise issue its just something too keep an eye out for and not confuse with bearing play.), if the tie rod ends don't have play or if you have replaced them and there is still play, suspect a bad wheel bearing, if you replace one unit, on the front, it is adviced too replace the other unit, if one has failed, the other is likely to do it soon, so replace them together...
repeat process with rear, as sometimes sound can transfer.
hope this helps
