I'm getting a clipping noise / static after new plugs (ngk tr55) and wires (napa 7mm). Noise with or with out engine running and with radio and cd playing. Please help after doing the plugs and wires I would like to listen to some music to relax.

 

check your battery cable positive connection for corrosion. clean as needed.

if still have noise problems, get battery and alt tested, and check for any loose ground wires.

 

Check your ground from the radio, in fact check all the ground wires. especially the ones near the red junction box. If it is a tick tick sound when the car is running (what I had) then you should be worried about a plug wire grounding to te car.

 

Check out station 530 AM and turn up the volume.

 

im curious...why THAT station??

 

Your gona have to elaborate on this one. As I understand it, you changed the plugs and wires only and your radio now has noise even when the engine is NOT running????? is this correct? So alternator and all the ignition components are now out of the picture.

Do you have some sort of aftermarket radio equipment?

 

kenwood head unit and alpine amp but no subs. Stereo has been in car for approx. a year now without issue. New plugs and wires and now I've got noise.

 

Plugs gapped correctly? No fireworks in the dark? Check if boots are sitting tight on opti and plugs. Some wires produce more interference, but it's strange that it happens while playing CD's.

 

I put some MSD wires on my car and got noise in the radio. Changed out the MSD wires and the noise went away.

 

If you have stereo noise when the engine is NOT running, you have radio/amp problems. Not ignition or alternator problems. Think about it.

 

Radio and amp removed from car. Installed in another car and everything is find.

 

I had AC Delco wires installed, no problems at all.

 

Could the spark plug wires cause a noise even with the engine off / not running ? I'm running 7mm napa stock replacement wires.

 

No, that's impossible