Install Remote on Octavia

Hi all,

My octavia has a central locking system without remote control.

A few questions...

Does there exist a module to plug into the car to get a remote working without wiring stuff? Or is that module present in all Octavias but no remotes are programmed and delivered with the car?

If such a module exists, what would it cost?

If I buy remote keys, can I program them myself?

I would also like the blinkers to light up when activating the system.