A:AnswerThere are a few double din display stereos that utilize a single din chassis. For example, the Sony XAV-AX5500 is a single din with a double din display. I have attached a photo for reference.
A:AnswerThey can install on any vehicle, so long as you have the correct parts. They could install on a Red Wagon, if you wanted them to do so.
Visit a tech, they will print a list of needed parts. Book the appointment.
A:AnswerTake it to the tech first. Show them exactly what you have. They will print a list of parts needed, if any.
Different locations will have varying availability. Bestbuy has a website that will allow you to see the different locations and when they have appointments open. Or, call the store. Also, you can physically drive to each one and simply ask, if you do not have internet.