LAGUNA III Retrofit daytime running light in chrome strip

Hello everyone ! Ride a Laguna III GT built in 5/2011, have in the front these chrome trims, where now the facelifted Laguna 2014 the day running lights are integrated. I asked Renault if they can be retrofitted. Was promptly called back the next day. The thing is you can buy these lights (price he didn’t tell me :-)) however you can’t retrofit them, because you have to go over the control unit and that wouldn’t work or so much According to Renault, the decorative strip of the facelifted should fit on my Laguna. So my question is a loan. Why can’t you connect the new lights to the existing line of the current daytime running light? Thanks for your help or suggestions. PS: I’m disappointed there are little things that would make pleasure but Renault makes a big deal of it and complicates everything.