Play audio using the Android player itself

Hello guys , i would like to know how to create an application that when pressing a button, the android audio producer is automatically activated.
My code:

//The manifest I've already added this:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

boton1.setOnClickListener {
            val intent = Intent(Intent.ACTION_VIEW)
            val data = Uri.parse("Download:///" + "/audionline.mp3")
            intent.setDataAndType(data, "audio/mp3")
            startActivity(intent)
        }