Radio Noise Capacitor (RFI suppressor)
Believe it or Not You have to Change your Spark Plug and Distributor Wires, to Noise suppressor type wires and probably put in a noise suppressor filter in the Hot wire that runs the Stereo. I know it sound different but this works.
It's picking up the alternator as it spins. In some cases the radio or antenna may not be shielded anymore or if so equipped the noise suppressor has failed. You might be able to get a noise suppressor from a stereo shop.
There are many ways one could potentially use a Boss Noise Suppressor. The Boss Noise Suppressor is most commonly used to reduce noise output from noisy machinery.
IT MAY NOT HAVE A CHOKE BUILT INTO THE CIRCUITRY. YOU CAN BUY A NOISE SUPPRESSOR AT RADIO SHACK. THIS SHOULD ELIMINATE MUCH OF THE ALTERNATOR WHINE NOISE. GOOD LUCK! ...BB
What kind of vehicle do you have?
Well, a suppressor... suppresses. A flash suppressor reduced muzzle flash. A sound suppressor reduced noise emissions (although nothing like how they're portrayed in the movies).
radio lol
TV-RS = Television and Radio Suppressor. Obsolete term IMO. Not sure where you can buy spark plug wires that WILL interfere with your radio...
turn the radio off
no. but to be safe check your local laws as some states/cities vary.Added: A 'flash suppressor" is NOT illegal but a "NOISE suppressor" ("silencer") definitely is unless you have been issued a federal license to own one.
There are a few possible causes. If the static changes with engine revs then you have a suppression issue. If the noise is general regardless of whether the engine is running then you need to look at the antenna or the radio itself. Ignition noise will typically produce a "tic, tic, tic" sound on the radio and is likely to be due to arcing around the HT leads or distibutor. The alternator can produce a whining noise if the suppressor is bad. The antenna can perform badly if it is damaged or if its earth connection to the car bodywork does not make a good electrical contact. If you think it might be your radio try substituting another.