Radio Code Not Working 2003 HSE

[KMac]

This sucks, the Harmon Kardon will not take the security code I have. What the heck am I supposed to do now? Please help.

 

[avick]

Did you get the code from the dealer? Have you owned the truck since new?

 

[jdool76]

I have gotten my code from the dealer. Just give them the VIN and a day or so.

 

[discomike]

So how are you trying to install the code?
Are you the original owner, and has the radio ever been replaced??
Mike J.