I have a completely stock, 03 Eclipse Spyder gts with the infinity sound system with the amp under the passenger seat and all that good shit. I wanna upgrade my head unit to possibly a touch screen with Android auto. Or at the very least. Bluetooth connectivity... I'm not very good with audio systems. But I can't afford to pay a professional. I've done a head unit install before in a different car. But I don't know how different it's gonna be with the factory amp and what not... So are there any special components or a certain type of head unit I should buy... Are there any tips anyone can give me? Any help is greatly appreciated.