I've eaten carp a couple of times, and if I'm feeling generous, the best I can say is that it tasted like the really cheap fishsticks you buy in a grocery store. If I'm not feeling generous, they tasted like the cardboard from a shoebox (the gray kind); in other words, pretty tasteless. However, I feel confident that if you use enough spices, seasonings, and other stuff that tastes good, you won't know the carp doesn't have any taste.
Along that line, it seems to me that carp might be a good candidate for making fish jerky, since 95% of the taste comes from the marinade you soak the fillets in before jerking them.