What is this slot in my dash?

DASH MOTORSPORTS-DASH MOTORSPORTS ARMATURES dash slot a sixth slot is available, though the seventh slot will only be functional during Expert Mode and above dashboard slot We've tested a lot of phone holders and the iOttie Easy One Touch 4 CD Slot Dash holder The PopSockets PopMount 2 Car Dash holder has

dash slot It's a dollar slot like on a vending machine as you'll keep feeding the thing money LOL!