Hungry_Horse_1955I think that what you have is an after market system. A picture of the remote key might help identify what you have.
CokkeliThat key looks like the key i have for -08 model golf but quality is very far from that. Theres stickers of seco- alarm Enforcer alarm system, but i think that it has been removed.
Hungry_Horse_1955This is an after market alarm. You could have a look here to see if they still make it;- http://www.seco-larm.com/VehicleCat.htm
CokkeliThis is not so easy. I cant find that alarm system head unit. And i have one key that works and one that doesnt work and third one, well its just key, no folding/stiletto.
Hungry_Horse_1955Get the serial number off the key (probably inside) and send it off to the company. They should be able to give you some information on how to reset the keys.
These keys usually reset themselves if you hold the button down for 10 seconds or so when the vehicle is unlocked. It might work.