I'm after some ideas/tip/tricks to help reduce an audible click when an LED is turned on. The LED is in a circuit that's applying high gain to a guitar signal - the clicking from the LED is somehow finding it's way into the signal path. (Even though it is nowhere near the signal path! Probably getting in via the VCC rail, into the preamp, then amplified)

The LED is turned as follows....

PIC output pin->current limiting resistor-> LED-> to ground.

I actually have two LEDs....an one of the modes has both LEDs flashing alternately - but the clicking is quite bad, so I'm having to rethink!