I think the newer version of these lights have it built in. Mine have resistors built in on the turn signal, but not the brake lights. If I recall though I remember seeing a thread about newer version of these lights not needing any resistors at all. So 5 years later still work great btw lol... And yes I did have to add a resistor to the brake lights to keep cruise control. It was a month or 2 after doing the write up that I realized my cruise wasn't working. And pictures work for me. What about yall?