Hi
I've been trying to update my navigation in my 05 Acura TL and I've been running into a few problems. I've been able to change the load page with a custom picture but when i try to update the trip computer and A/C controls I receive the following error message

"Nag modification isn't supported on your car"

I have the 3.40v DVD and I was wondering if anyone else has had any problems trying to modify there nav. If someone could please instruct me on how to update this that would be great. Thanks. If you need any more information about what I'm trying to do please let me know.