I just went out and tried the original key, Stereo came on first try. I think original, Bought the truck used at the end of '06 from a dealership. I don't use this key because it got wet with salt water (work at a marina) and the remote dosen't work. The key that i do use so i could have a remote came from a dealership. I will continue to use the original and see what happens. I will let you know. Thanks for the info.