Save your money and don't be scammed. They will not warranty the hardware if it doesn't work. You will spend hours jumping through hoops and right when you think they will warrant it, you will pay close to $100 to ship the hardware back, but instead of them sending your replacement device, they will send your bad unit back to you. I'll have a full write up with screenshots and etc that I'll post on all of the car forums where you can read more.
Is this your business?
Claim your listing for free to respond to reviews, update your profile and manage your listing.