I hope I'm not too late, but you'll need a 2-channel amp that delivers around 200W RMS at 8 ohms per channel. Look for models from brands like Sundown, Hertz, or JL Audio. Make sure the amp has DSP integration to manage tweeter control separately.
You can upgrade to a better touchscreen deck with more features like Apple CarPlay, Android Auto, better graphics, and customizable interfaces. Look for brands like Pioneer, Kenwood, or Alpine for high-quality options.