light internal - relay 382 - 4d0 907 131 - 4d0907131

translated by google ... sorry if it is not perfect.
Hello everyone. I'm fitting a burglar alarm on my a8 d2 4.2 of 1994 (bought in June .... in very poor condition).
I have already solved the problem of dual control pulse to open the doors ( from blinker connect the normally open contact to the opening doors of relay and to cascade another relay that goes to control the contact opening).
now I have to connect the signal indicating the open door. I wanted to use the relay "4d0 907 131 A" number .382... but where is it located? I can not find ... Thank you all for the information ....