Switch issues

So I am converting a heiland. I cut a channel for a small tactile switch to place under the original camera flash button. Similar to the graflex red button setups I've seen. However while the saber is on it starts making random blaster noises as if I have hit the button. The manufacturer of the board seems to think something is grounding out, but the only thing touching metal is the insulated wires of switch, and if I remove it entirely from the hilt the random blaster noises cease. I'm pretty confused at this point. He mentioned other possibilities like the speaker grounding out, which I haven't ruled out yet. Has anyone come across anything like this. Its been particularly bad on morale I can tell you that.