So i had to replace my battery in the TL after about 4 years and when I connect it, the horn is blaring non-stop its not even HONK HONK HONK, but a straight HONKKKKKK. i dont have the keypad for my viper or factory alarm, i turned the key from lock to unlock on the door and even in the ignition but no luck. Is there anyway for me to disable the horn? the car is in a parking lot and it is too loud to just keep toying with.

 

your horn is toward the front near the radiator/grill i believe..see if you can unplug the connection