I just installed the 5 button DIC into my 05' GTP and it plugged in and now the ambient temp correctly displays the temp. I guess something was wrong with the 3 button, though it did not display temp anyway. It does seem to have an effect though. My car was equipped with the front temp sensor already as well as HUD. I went to install the compass module and there is no plug for it. I searched all the harnesses and there isn't any wiring for the compass anywhere. Next step is to find an 06 or below 5 button DIC since I ended up with an 07' so I'm getting the service tire monitoring system error as stated earlier.
Jeff
