Originally Posted by NeverEnuff
I just installed those on my '11. I had to cut and splice the wires. Not hard to do. The LEDs have one extra wire that I can't figure out what it goes to because everything on my LEDs are working. Only problem is I get the fast flash only when my headlights are on. I bought the LED resistors at autozone and it blew a fuse and didn't work. I even tried connecting the extra wire from the LED lights and still nothing.
I'll have the full write up posted tonight, once I get home from work.
The "extra" wire is a fault sense - you won't use it for the 2009-2012 trucks.
Edit: Sounds like you've got a wire in the wrong spot if you are getting intermittent hyperflash.
Check back tonight!