Review on Carplay Mirrorlink SD Card Touchscreen Navigator by Jimmie Trotto

UPDATE: I've put this at the top so you can see my latest update before you see my old review. The system works great! I found the rear speakers work and somehow everything is very well balanced! Yes, I can only balance the front speakers, but somehow it's also connected to the rear speakers, so it automatically does that all together. Even if you had built-in navigation and other features from your old device from a premium or higher than base car, don't worry, just plug in what you can and you're good to go. My only concern is that I'm hoping someone can tell me why my rear speakers aren't working or connected to the radio. Only the front speakers play, nothing behind my seat or the passenger seat. I found it out trying to balance the music. I also have two extra cables left, I suspect one for the built in navigation from my old device, but I don't really know any of that.