Mast Leaks
You didn't say what boat model that you have. But, all the HUNTERS that I have seen have a short tube in the cabin ceiling that contains the mast wiring. Sometimes this tube comes unsealed from the opening in the cabin roof and then sometimes the sealant in the tube becomes unsealed. Either way, you will end up removing your mast in order to fix the leak. I have started removing my mast about every five years and inspecting the wiring and lines for signs of future problems. Then reseal the wiring when re-installing the mast.