The previous owner of my car installed a Viper (the aftermarket alarm company, not from Dodge) alarm system. It *****. BAD.
As a result, neither of my exterior door buttons work to open the door, nor does the internal door handle on the passenger side. I don't know if this is due to a conflict with the factory alarm system or the result of a botched installation, but it's very annoying.
Also, completely randomly, the factory car alarm will arm itself which overrides the aftermarket alarm, effectively locking me out of the car. So, I have to unlock the back window and use the emergency release to get in when this happens.
I'm getting ready to have it removed and either revert to the stock alarm or have a Clifford installed.
They also enabled the voice synthesizer so I have to hear "VIPER ARMED!" and "VIPER DISARMED!" when I enable/disable the alarm, and if someone gets too close to my car, it yells at the offender, "STAND BACK! PROTECTED BY VIPER!"
So freaking ********