Well Like put in another post, I poped open the blank cover on my center console where the controls of the dash message center screen is and it had the the extra wiring cable. So I went on ebay and bought the info,setup,reset buttons. Only for $10.00. I won't be able to get the new speedometer cluster till Jan due to financial problems. I decided to test the new buttons and they light up. My question is can I leave it plugged in with out having the new speedometer or will leaving it confuse the cars computer and make my car have electrical issues or other problems.

 

i don't think it would screw anything up... all it does is gather info and output it to the cluster display. if the display isn't there it'll just output to nothing.

 

So I just got a 2005 and I also have the blank buttons, if I buy the switches (buttons) for it is the wiring behind it? Or is it not even equipped with the wiring for it? I’m just confused if I am able to instal the buttons or not.

 

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All of the GT models (Deluxe and Premium) were fitted with the wiring pigtail so it'll be plug n' play.