Alternator/generator/regulator problems of the 2006 Ford Freestar

My radio goes off by itself, and all light flicker even when driving of a night. It is now making a sound like tight belts. . . But does not appear to have any ready to break. Ford you really messed up on this one! I no longer like having a Ford car! I have had 3 different alternators on the car and it has not helped!.

I have a battery light that keeps coming on even after replacing the alternator twice and battery twice. The light still keeps coming on and will not go off. There I am driving down the road and everything is flashing and then it stalls. I have had both battery and alternator checked and they are fine. Wiring has been checked and nothing seems to work. Also I have replaced the breaks on the car twice and I still get a loud grinding noise when I go to stop. Ford needs to fix these vehicles. I have read in many forums that people are having the same problems with theirs and after spending a bunch of money trying to fix the problem it still is not fixed. I need my vehicle to run right without having to dump money into it all the time and I keep up with regular maintenance but this is above and beyond that and this is ridiculous!.

The van has been hard to start just recently past month it takes 4 turns of key to start , van dies while driving, battery has died . Took to Ford dealership and they cant find anything wrong at all . They had me replace , fuel pump / spark plugs and wires / fuel filter/ ignition coil / tps sensor / air intake idle sensor / cleaned and reprogrammed the pcm / made new ignition key / cleaned all ground connections / checked alternator / replaced battery / drained gas tank and added fuel cleaner / after all of this expense I still am having the exact same issues ?????? any advice from anyone ??/ thanks in advance .