In order to offer the same functionality as an actual USB car radio, it's important to look for an FM transmitter that includes a built-in DAC and MP3 player.
Iji nye otu ọrụ ahụ dịka ezigbo redio ụgbọ ala USB, ọ dị mkpa icho maka transmitter FM nke gụnyere mgbidi DAC na ọkpụkpọ MP3.