I want to put an alarm in my car, I want to spend between 300-500 bucks. One problem I have is my door locks are possessed, when I changed the door panels I fixed them and they worked perfectly, of course once I put the freaking panels back on, they started screwing up again. They unlock, most of the time, but somedays they stick. Should I get new locks and go with lock type alarm? Or is there another alternative?