what to do with my cat on my speaker grills

my cat asia has decided to use my vienna mozart grands to claw on the grills. no major damage.. i use the speaker box packing to protect my speaker grills, but at times the little #$^&$# get to them....anybody have a sugestion and does anybody have this problem...simeese cats are a odd bread..lol
find an ex you don't like and leave the cat on her doorstep!
"This here is a .44 Magnum, the most powerful handgun in th world and could blow your head clean off, and in all of this confusion I can't seem to remember if I fired 6 shots or only 5. So now you have to ask yourself, 'Do you I feel lucky', well do you cat?"
Walmart sells a compressed air can with a motion sensor in the pet section. I forget the name of it, but I think it is called Scatttt, or some form of that. It works well, any time the cat gets within the range of the sensor, it blasts a shot of compressed air at the cat, and away they go.
Get a pair of Wilson Watch Dogs.
Anyone see the opening scene in the movie The Book of Eli?