Currently, the 2 non-functioning keys will start the car, but it cuts out almost immediately. So you've messed up the immobiliser settings somehow.
I can't recall how you sort that out, but you will almost certainly need VCDS to do it.
I'd aim to sort that issue out first and ignore the remote ...

Jim, can you clarify EXACTLY what you are trying to do, e.g.:
How many keys you have.
How many and which will start the car.
How many (which) will unlock/lock remotely.
What you are trying to do with each key.

The immobiliser and remote functions are almost entirely separate.
IIRC if you have at ...

Just another little update. Since getting the car back I've only been doing relatively gentle local runs, including ferrying a disabled passenger so no pushing the boundaries.
That said, it's been driving very smoothly, which it hadn't been for some time, so I suspect the old F125 had been upsetting ...

Indeed. I had my glovebox out ages ago for another job all to do with Digital TV and other RNS inputs IIRC.
While there I "improved " the wiring to the light, repaired/reinforced and secured it properly and put an LED replacement bulb in.
I "think" I had to swap the cables over as the polarity was ...

I can't access any menu items such as changing the dash date from 1999! You need the radio-controlled clock module! :D And yes it does know summer time is here (well mine does). :geek:

And yes, like The Laird I didn't get it at first. Press the Menu button to activate then rotate the button to ...

You WILL break it, or it's already broken. :twisted:
The whole thing is horribly fragile and in a really awkward place and has very short wiring.
Realistically IMHO (others may disagree) the best option is to take the whole glovebox out and work on it with better access. It's not as difficult as ...

I have various RNS-D firmware and firmware editing tools so its not a matter of how, but when :D Now I'm getting interested! :ugeek: I'm sure I read somewhere that was the only way it was going to work automatically.

I vaguely recall updating some firmware on an RNS-D years ago, I think that was ...

The replacements are for the 5HP19, which is smaller, so the cable is shorter than the one for the 5HP24. Pretty much the only option is to cut and splice the wires.
Next time I pass the garage (when its open!) I'll pop in and see if the mechanic can explain what he rerouted and where to get the ...

I've seen stuff online that suggests the auto-switching on reverse only works with certain MFD versions in certain modes.
If you do get it working with an RNS-D I really do want to know how!
And yes I've also used relays when I had a more complex setup (with Digital TV among other things) but I've ...

Bolted the OEM unit back together using (because I had some) M4*16mm button head bolts.
Fitted together fine and I "think" you'd probably just get away with 14mm. Ignore the rubber band on the sleeve by the 10-pin plug, that's now properly cable-tied.