Are your desiccant packs dry? If not they can be refreshed in a microwave oven.
A regular oven works far more effectively.
It takes time for the absorbed moisture to become vapor and dissipate.
Golden Rods and other heaters do not actually remove humidity, but heat the volume slightly lowering the relative humidity and preventing condensation from temperature swings.
Desiccants actually lower the amount of water in the enclosure by absorbing moisture, but have a limited capacity before they must be heated to drive off the absorbed moisture.