Hi everyone, after replacing the radiator and refill the engine coolant and 2 o 3 days ago when every time I start the car is a super noise static sound from the driver door speaker, just put the key and on, I can hear a sound and/or when turn left or turn right signal or when I on the light beam or turn the radio, let me say also such du replace the radiator I had to come out the front bumper and the foo light and I didn't put it back again.
so any had that kind of issues before the static sound from the speaker when start, turn on signal(left or right),
thanks sincerely
tomas

 

Check the ground wires where you were doing the work.

 

X2 check those ground wires

 

Thanks so much, I forgot to mention that disconnect the black negative connector on the battery to see if gone
but I just disconnect the power for radiator fans, or you mean on the socket light?

 

Probably spilled liquid on the alternator connector.

 

so will check tomorrow but I put under the pressure cap a peace a rope for any accident like you mention, but if in case how can I clean the connector? because thinking that that starts after refill the last time the cooling hoses on the pressure cap.
so any advice?
thanks

 

It will probably dry up after a bit.

 

Thanks donbrew, so what I need is to clean up the contact?, here I attached a picture the alternator to ask if is that the connector that I need to clean up?, can I clean with alcohol ? or what spray you recommend me for that?, i remember the car couple month ago started with that static noise on the driver speaker after I didn't hear anymore but one day after I open the pressure cap for refill cooling start again.so any advice will be great.

 

That is not a ground wire! It is the red wire that is attached to the positive post in the fuse block

 

Of, course, disconnect the NEGATIVE terminal at the battery before removing that large red wire.