I just got subs an amp and a deck installed in my car. When I drive about every 5-10 minutes my subs shut off and later come back on. Why is it doing this Its driving me crazy?

Overloaded circuit breaker. If you didn't beef up the electrical wiring from the battery to the new amp and subs, the original wiring is trying to supply the additional current and it just can't stand up to the load, so it "pops" the breaker ... after it cools off sufficiently, it turns itself back on again.

The original car wiring was never meant to handle anything other than what the car was originally delivered with. With each item we add as a consumer, we are adding unnecessary drains and loads to what is sometimes an already over-burdened electrical system.