High pitched noise coming through radio

[dlock13]

I have an FM Transmitter for my car, and when no song is playing or just the station is broadcasting, I can hear my car as it goes faster. It's hard to describe.

Every time I push in on the gas with no sound but the station + transmitter in the background, I hear this high pitched noise start going. Once I get into another gear, it kicks up as well. It goes along with my gears shifting and such.

When I power off the radio, it doesn't occur anymore. I've no clue why this is happening.

Any reason why this is happening? Any solution? Its a nuisance that needs to be dealt with swiftly.

 

[Hyperlite]

i believe it has to do with ground noise coming through the head unit, as for a solution... i'm not really sure. i know what you're talking about though if its any consolation. i used to have that problem with tape adapters.

 

[CptCrunch]

Check your grounds for the radio, near the trunk and the engine. I had this problem with my 1993 bonneville. Every 6 months I had to take this one ground bolt, by the front right fender, take it off and take a metal brush to it. After I did this, it'd go away for about 6 months. Might have to try that. If I remember correctly, it was really, really annoying

edit: fingers no type good

 

[dlock13]

I have no idea how/where to check for that or even what to look for. :

I'm not very knowledgeable with cars or their circuitry or anything really. So yeah I'll check it out in a bit to see what I can find.

I'm glad you guys know what I am talking about though!

If you have any other suggestions/ideas, throw them at me. Or if you can explain it further, it will be even greater help.

 

[T2urtle]

i think its called alternator whining....

but first thing is to check the grounds for the radio.

 

[jagec]

Yup, grounding. You can try to make a more secure ground connection from the battery, or even double up your ground wire to try and eliminate this sound. Some people who do really high-powered stereo installations swear by 'super-grounding', where they run REALLY heavy-gauge wire between a bunch of points on the car and the battery to ensure that there is good flow to both the engine and the stereo, but IMHO that's a waste of money. But adding one more grounding point might help.

 

[Beau]

Definitely grounding... Better grounding or even sharing the ground point between the devices (ie, run a ground wire from one point to the next) usually takes care of it.

 

[dlock13]

I really have no idea what you guys are talking about. I have no money to take it anywhere to fix it. Would it be easy to do by myself?

 

[Cdubneeddeal]

Ground = black or brown wire coming from the stereo. It should be -12v or near it. Most likely the wire is loose, being shared by another ground, or the contact point to the chassis or connection is corroded or loose. Take a multimeter and check those grounds. It's very simple and nothing to really get in a panic about.

 

[dlock13]

Originally posted by: Cdubneeddeal
Ground = black or brown wire coming from the stereo. It should be -12v or near it. Most likely the wire is loose, being shared by another ground, or the contact point to the chassis or connection is corroded or loose. Take a multimeter and check those grounds. It's very simple and nothing to really get in a panic about.

LOL. You are talking to someone that has never touched anything but the car itself and not the inner workings, wirings, circuitry and such. I honestly have no idea where to look or to even start.

I need picture by picture steps for this to work for me.

 

[Mxylplyx]

I fixed this same issue once by replacing a badly corroded battery terminal, so it's definately a grounding issue somewhere.