A vehicle’s center stack is the interior space that runs from the driver’s right hip up through the center of the cockpit to the bottom of the windshield. That area is being staked out by many companies new to the industry, including software providers, camera makers, electronics firms and data integrators. However, safety advocates, from local law enforcement agencies to the National Highway Traffic Safety Administration, want consumers to have fewer distractions, not more. As a new era of vehicle technology is opening up, safety advocates are rising up to check it.