Riddle me this: Where is the current coming from?

[DaveMcKenz]

If you search for LED tail lights by a user named Spoke, there is a detailed discussion of this situation. He incorporates a resistor into his LED brake lights to address this problem. An add-on resistor will also solve the problem, and he sells one. Or you can just go back to regular tungsten filament bulbs for the two rear brake lights.
Good luck,
Dave

[Tremelune]

I would think adding a resistor defeats the purpose of LED bulbs (a lower draw on the charging system). I guess it matters how much resistance you need to add...

Here's the Spoke custom LED panel thread: LED Brake Lights

[jrbennett]

Originally Posted by nickd

I’m not sure what year you have, but the cruise control completes a ground through the brake lights and disengages when it gets +12v from that wire. With all incandescent bulbs, the resistance to ground is 6 ohms. With led/smd bulbs, it's not.

Same thing I was going to say