66 Mustang radio

Hi there! I purchased my 66’ this past summer. I need to fix the current radio that is there. It isn’t the original, but a digital replica. My question is, can I replace it some something more updated? Something with Bluetooth? I don’t think Bluetooth would necessarily be helpful since she’s a loud one but it would be a nice option to have! Thanks for the help! Also- Betty doesn’t have to stay original. I got her to drive and have fun in! I love her a lot and as soon as the snow is gone, she will be my daily driver