Installation was easy. However, there are problems. Pros: Sounds great, looks great, and mostly works. Cons: - On-Star doesn't work. Although it displays "Onstar" when you press the blue button, nothing happens after that. - Say goodbye to the sound of the turn signal. only silence There is no way (that I can find) to change the temperature to Fahrenheit. It's stuck in Celsius - Boot time is said to be "5 seconds" but it takes a minute every time - No support. I've searched and can't find any tech support at all - The manual is very vague. No help. Overall I'm happy with it as long as I can continue to ignore these issues.
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