Module to connect trailer lights

Hello, you could help me, I want to manufacture a module to connect the lights of a trailer to a vehicle with multiplexed system. Thank you

I tell you an idea, you can get the cables from the lamps. The only thing that you have to prove is that the intermittency does not vallate slow or that the vehicle marks the fault of lights (some vehicles when noticing resistance different from that of factory indicate to you light failure).

If you do not see the scrapping/spare stores and you catch the plate of the rear pilot that carries Antiniebla la, bridges with antiparasitic cable to the pilot's plexado and of that plate of the portalamparas you take out for the tow base. That is a module.