Report "Audiovox AS-9903 Car Alarm - Horn Stopped working and key fob will not unlock the doors. the dash light indicateds that the alarm itself is working but the horn does not blow. the trunk will open and the auto start function still works. i removed the horn to find what could be wrong - is there someway to fix the horn or do i just need to get a replacement? hate to buy a new horn if it isn't necessary - sooo before i go tearing into the horn i thought i would check with you guys for suggestions. also what would cause the doors not to unlock with the fob since other functions work -"