There's no simple answer to this question. There have been a number of different consoles and e-box designs used for both models over the years. If you know the model year of each that might narrow it down.
To my knowledge, the 18' and 21' CCs for a few years in the 90's and early 00's shared a console design, so in theory it might work. But the only way to really tell is to get dimensions on both.