the size of an SD card recognized my car?
I have a car stereo brand double Best Buy. It has a USB port on the front for a USB key. mp3 it will play right off the USB drive. I use a micro USB card reader with SD card 4GB Micro SD. big question is whether the the card can recognize the stereo. For example, my digital camera will read up to 2 gig. If I put a 4GB card for my camera it says 2 gig. instructions do not say anything.
Find your stereo line by the manufacturer and model number, you may be able to say there.