Honestly speaking, I think your response will be useless!! I just bought a same Camry 2.4G with Carmax 4in1 multi-display which type is OEM by Necrcox with Polnav GPS software with SD card by last two weeks ago. Not only the display performance is weaker than my PDA and Android MS with Papago, alos the GPS position speed is slower than any handheld devices. This carkit use the embedded Windows CE OS to access the SD card. The positioning speed is determinate by the GPU and SD card fetching speed. It's nothing less than a junk!