I hear a clicking noise that seems to be coming from the dash when the car is on on 2004 Lexus ES330

I have a navigation system with single cd, and 6 cd changer in the center console. What could be causing this, and how do I fix it ( make the noise stop)?Everything works fine, but the clicking noise is annoying.

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1 answer 1 comment
Do you hear the clicking sound when the air conditioning and fan are turned fully off and the stereo is off? The fan blower motor is under the glove box area on the passenger side of the car could the noise be coming from that side?
Thanks much for your reply.Yes, the sound continues when the a/c and fan are fully off, and the radio/stereo is off. I removed the glove compartment and the sound is clearly coming from there. Any suggestions?