I have a 2000 vintage Volkswagen Golf mk.4. As it came from Wolfsburg it had central locking but no remote control on keys. Somewhere along the time I had aftermarket remote installed and received two key fobs. A few weeks ago my battery died. I don't know if this was the cause or just coincidence. But I noticed that my key fob remotes do not work any more. My first suspicion was that the codes for key fobs were erased so I thought to recode the remote to fobs. But here is the problem. The instructions are nonexistent. I have searched over the internet for some generic tips on how to do it, but every procedure I tried had no result. I also could not find manuals on net for my model. I also do not think it is bad battery in key fobs as both stopped working at the same time. I have posted a picture of a box the remote came in. If someone can recognize the model or know how to reprogram this things I would like to know how it is done. Perhaps there is a reset/recode button on the remote vontrol box itself, yet I do not know exactly where in the car it was installed. So I tried stackexchange, before I start tearing the car apart. The location where the control box is usually put in Golfs mk.4 would also be useful.