CD's, Radios, Phone Bluetooth whatever next, dash mounted DVD players? Why would you bother - it's a Morgan you're driving not a Toyota. I guess having a radio in the car might be beneficial while you're polishing or tinkering with the car in the garage but personally I'd just use the one on the bench.
Everyone to their own. I happen to enjoy listing to radio 3 on long journeys and have done for years in various cars including a Austin 10, AH Sprite, Triumph TR3 and 4A, just because I now drive a Morgan I dont see why I should be denied this.