My thoughts are that it may be a tall order. Given the system has antennae to pick up internal and external presence of the keyless fob signal you would need to install all of these plus be able to enable those antenna in the KOS & OSS-ECU after you installed it to get things working. It is an unknown as to whether the ETACS-ECU would need to be flashed to enable the KOS & OSS. You won't have the KOS & OSS-ECU either which is a major control in the circuit. All communication is encrytpted in the ECU system so may be another roadblock.
Add to this the immobiliser functions attached to the existing keyed entry system and you're opening a can of worms. You would need to clear the keyed entry security and enable to KOS & OSS security functions.
The keyless start switch needs to be installed in the dash and added to the ECU systems. Then you have the integration of that start button with the safety requirements of depressing the brake pedal (Auto) or clutch pedal (Manual transmission) in order to begin the start process. Would the installed process integrate correctly and fully? Last, but not least, you need to source two keyless fobs, have the backup keys cut and add these fobs to the KOS & OSS-ECU function for the whole system to be enabled.
Not to say it is impossible however would it be worth the outlay. All of these changes and tasks REQUIRE the use of the M.U.T.-SEIII diagnostics system to make the changes. These are only available to authorised dealers. I can certainly understand why the shop showed a reluctance to assist.
See the pic below for the location of the KOS antenna. These alone require the replacement/installation of a significant number of parts (3 door handles and a console and rear entry antenna).
![996]()
Here is the manual description of the door entry function:
![997]()
And the One-Touch Start System (OSS):
![998]()
Add to this the immobiliser functions attached to the existing keyed entry system and you're opening a can of worms. You would need to clear the keyed entry security and enable to KOS & OSS security functions.
The keyless start switch needs to be installed in the dash and added to the ECU systems. Then you have the integration of that start button with the safety requirements of depressing the brake pedal (Auto) or clutch pedal (Manual transmission) in order to begin the start process. Would the installed process integrate correctly and fully? Last, but not least, you need to source two keyless fobs, have the backup keys cut and add these fobs to the KOS & OSS-ECU function for the whole system to be enabled.
Not to say it is impossible however would it be worth the outlay. All of these changes and tasks REQUIRE the use of the M.U.T.-SEIII diagnostics system to make the changes. These are only available to authorised dealers. I can certainly understand why the shop showed a reluctance to assist.
See the pic below for the location of the KOS antenna. These alone require the replacement/installation of a significant number of parts (3 door handles and a console and rear entry antenna).
Here is the manual description of the door entry function:
And the One-Touch Start System (OSS):
