Thanks for your reply. I already noticed that the models differ between USA and Europe but the local Spark forum appears to be dead unfortunately as nobody posted anything for a full week. So i found this forum, read a lot of information that getting a keyless entry will be very costly and time consuming.
Back in the day (judging by your nick i assume you know this) one could just buy 1 set of 4 little electro-engines and 1 module and install keyless entry. MOst work was fiiting these little engines correct so that they would close/open the doors. Nowadays so much computers in a car that if y