What is the difference between aftermarket remotes and factory remotes? Last Updated: 10/19/2009
Factory remotes work on factory systems, which are the original systems that are installed in the vehicle when it is built at the factory.
Aftermarket remotes work on aftermarket systems. Aftermarket systems get put in a car after the car is no longer brand new. Alarm shops, Best Buy, and dealerships typically are the ones that install aftermarket systems in cars. There are many different aftermarket brands that are common. The most popular are ones made by DEI. DEI's most popular brand name is Viper. Most people have heard of Viper because of the commercials they had in the late 1990s (the car would yell "this car is protected by Viper - stand back!")
Factory remotes and aftermarket remotes are almost never compatible with each other.
