Hello everyone! Hoping someone could shed a light on a weird noise i have in my engine bay (please move if not in the correct section). Ever since i got my starlet SR, ive had the bonnet open and next to the airbox ill here a random buzz, electrical shorting type sound which comes and goes(pretty sure it isnt though) almost sounds like some hench fly is stuck somewere. Anyway Today i was replacing my spark plugs and noticed it again so starting tapping, moving things to try to find it when i came across the item in the picture below, when tapped it makes the noise described above? Everytime! Is this normal, isit even this? Help!?!? Car runs fine by the way. Thanks in advance