Not too certain of the specifics of the speakers or what sort of mounting brackets might already be in your car, but a good option for your budget and needs would be something like this: https://www.amazon.com/JVC-KD-SR86BT-Bluetooth-External-Microphone/dp/B0B2S6NKY5

If you want to spend a little more money and have the room, there's a double din option there too with a pretty slick interface. Good luck and have fun!