inputs.text: beware plug play claim - first unit plug play installing without existing systehem replacing 2010 toyota prius nav systehem jbl prehemium sound not plug play interface matches existing systehem steering wheel controls back camera interface satellite radio interface not match also requires interface jbl prehemium sound costs anywhere 50 100 dollars depending type interface requires wire splicing goes plug play claim nice looking unit fits dash perfectly prepared shell bucks correct interfaces also use supplied gps antenna install well good luck