I own a 1996 mazda protege. The car was brought used from someone who apparently thought they knew about radios and alarm systems. As I soon would find out, he was wrong. The entire stereo and alarm system is rigged. I have since taken the horn off of the alarm to stop the noise. But now I am having the problem of the car resisting the turning if the key. Meaning I cannot open the door with the alarm or by putting the key in the lock. Could this possibly be a malfunction of this entire car or just the replacement of batteries in the alarm remote controller?