I have a location were I have seen several carp get hooked up... Mostly on small panfish bugs... My buddy actualy landed one... A healthy 15-20 pounder on 4 pound test... Ice been told in the cold weather you don't want to bait much and your hookbait should be small and spicy! Tabasco... Cyenne pepper... Etc... And if you can't see bottom you should use a very small float to detect strikes... Carp move too slow in tge winter for bolt rigs...
Good luck in your hunt... I'm starting my carp hunt thus weekend...