Hey guys hope this is the right place to ask my stupid question but I'm having an issue with installing a Becker R3 (I think in US they are RB4 but I'm in Europe so only RB3 here) in a 99 CHrysler 300M (it has the old style harness and antenna) .I want to do this because it fits with the dash style and looks like a factory upgrade but that's just my mental health issues lol ,the real problem is I can't figure out how to get it to light up when I turn on the headlights. I got 2 adapters for 99 to 2002+ but for some reason I'm left with the PCI BUS cable out and the orange 3rd pin for lights doesn't turn on the backlights when I turn the headlights ...what am I doing wrong?
