'91 eclipse brake problems?

i have an old car that whenever i back out and brake, it makes a loud noise, but when i brake any other time its fine. any ideas?

and sometimes when i brake to hard or i leave the car idle too long, it turns off by itself. any ideas?

  C4LV1N

Okay, I'll respond again. It sounds like your universal speakers are overloading (or possibly underloading) the brake/idle interface circuit. I suggest asking xand3r, he has the answers for everything... Well nothing really.

  vwhobo