De mon côté je cherche un schéma de câblage du truc, en furetant sur les forums Américains trouvés par Google j'ai trouvé ceci:
"It can be done and it's easy enough.
You'll need:
1.Factory auto dim mirror with pigtail from 2001-2006 Caravan/Town Country. ($10.00 salvage yard)
2.Headlight switch with the Auto option ($45.00 new)
Your van must have either the trip computer (OTIS) or EVIC.
It's a simple 4 wire hookup to the wiring at the EVIC. Once connected, the BCM automatically recognizes that the vehicle has auto headlights. Now my EVIC has an added function: Headlights on with wipers.
Pin 1 on the mirror is switched ignition power.
Pin 2 is ground.
Pin 3 is reverse dim inhibit.
Pins 4 through 6 are not used.
Pin 7 is the sun sensor output."
Donc à priori je n'aurai besoin que des trois premières connexions pour le système complet, ou seulement des deux premières sans la fonction marche arrière.
Ça avance