Gonna see if this works. Will only take a minute to put on, cost nothing.

 

Its hard to tell what you did from the pic. Splain Lucy.

 

Thin plastic covers that came with my Hertz speakers. Rather than throw them away, notched them where needed to fit around clutch/brake cables.

Put them in place, 2-3 pieces of tape to hold them there, and should be able to spray down bike without getting speakers wet.

 

Smart thinking. It was just hard to see in the pic. Thanks for the idea.