Aftermarket Car remote keys are non-factory parts made by third parties. The majority of them are produced by factories in China with differing quality. It is very difficult for a layman to know which is good as they may look the same. An inferior remote-key could possibly corrupt your car security locking system and cause endless headaches. So the rule of thumb is to go to reliable shops with good reputation and brand image. Do not allowed yourselves to be lured by low price trap and end up getting a crab!
If you car is fitted with aftermarket alarm system, you will probably have an aftermarket remote. We can duplicate most of them in the market without changing your alarm system even if you have lost all. If you remote is not working, we might be able to repair it as well.