Well, the Storme has a single DIN slot in its centre console and the unit initially offered by TML was not liked by many. Then TML offered another unit which had a folding screen which made it look like a 2DIN but the angle of the screen was too low to enable comfortable viewing angles for the driver and was expensive too. Hence, TML decided to do away with the sound system altogether to allow complete freedom of choice to the customers. This also helped them to reduce the vehicle price to some extent.