Update: I made a confusion. I double checked and the connector i thought was for the door sensor, was actually for the door handle illumination. So, no keyless entry on my car. Yet ! I also looked up in Elsa, and found out everything there is to be done. Beside what my colleague said, if you want to open the trunk too, you will need 2 extra antennas in the trunk, and a sensor + sensor liner on the trunk bonnet. Then, you need to wire the door handles and antennas. The door handle needs a ground which can be taken from the 20 pin connector on the door controller module, and another wire which needs to be routed to the J393 module in the trunk. All 4 doors the same. Then, the antennas in the rear doors, also need to be wired to the J393. Quite a job, since you will need to dismantle the trim from the A and B pillars, and to get the wires in the trunk compartment. For the trunk antennas, and sensor it's an easy job. Coding is quite simple as far as i can tell, and all you need is to code the 05 - Access and Start Authentication to recognize the Advanced Key option. J393 and door controller modules are the same with or without Keyless Entry. I'll let you know when i get it done. I ordered the supplementary parts today. Regards.