Sorry for the use of the English language. :-) :-)
Since there is no warning light in this factory so I did it.
Now that we have. I open the door switches on, shut shut down

Can you write here how you did this?

Yes of course..
The first round i bought four 5mm red Led with ingredient resistance...
Than i took off the door trim, than carefully, five drill drilled in the middle of the prism, the prism is on the door trim,the hole will be appropriate..
Next step, To thr Led isoldered to a three-meter speaker wire.
For now it's a door is ready. This is the test door. If i do the next one I make a detailed note with pictures.
I had no time to deal with lately