I've had the idea in my head of taking an old under-dash aftermarket 8-track player and gutting it and sliding my CD player inside it. Then make a door with a clip or spring so the 'face' of the 8-track player can flip up and down to reveal my cd player behind it. I already have an old pioneer 8-track player sitting around and its dimensions are big enough to hold a modern cd deck inside it. Would have that period correct look with a modern deck stuffed inside it. It's on my todo list, whenever I get around to that....