I know this has been asked a billion times but here I am. I've grounded the PB wire, the Radio, and the cavity next to the mute wire. Doesn't work. I've checked ground at all three spots and separated them as well. I'm wondering if the pin in the unit has failed? This worked fine in a prior install but got a newer truck. Any ideas? Can it be hacked out on this model?

Anyone?? I also tried using a PAC bypass and still nothing. I get the "system detected improper connection" everytime the radio is turned on with the PB wire unhooked, grounded, hooked to the secret bypass, and hooked to the PAC bypass. The settings work fine in every menu under 10 mph but gray out with speed. Any ideas?