Winter covers for spinner racks and speakers

[ES]

Hi, just wondering what other Nautique owners are doing to protect the tower attachments (spinner racks and speakers, specifically). I know some people recommend speaker socks - which I find expensive, not sure if they are worth the expense.
The boat sits in a covered boathouse in NC, but wind / rain can still reach it under certain conditions. Thanks for your input.

[jroyal]

My son came up with the great idea of trash bags and duct tape. It works great and you can't beat the price! Keeps out dirt dobbers, roaches, etc. Just be sure to keep the tape on the bag and not on the speakers. Works great.