Whine?

**lsgunner28** · 01-30-2010, 03:08 PM

Anyone else get a radio whine while driving? I ran new wires, still there.
How can I fix it?
thx

**Wesman** · 01-30-2010, 05:03 PM

Originally Posted by lsgunner28

Anyone else get a radio whine while driving? I ran new wires, still there.
How can I fix it?
thx

Its probably just picking up electrical "noise" from the alternator.

They make in-line noise filters that you can install, any car stereo retailer (Best Buy, ect) should have them for cheap.

**blackSS01** · 01-31-2010, 12:15 AM

Originally Posted by Wesman

Its probably just picking up electrical "noise" from the alternator.

They make in-line noise filters that you can install, any car stereo retailer (Best Buy, ect) should have them for cheap.

But I see in your sig that it says SGM after your car, does that mean Sergeant Major by any chance

**Wesman** · 01-31-2010, 11:37 AM

Originally Posted by blackSS01

But I see in your sig that it says SGM after your car, does that mean Sergeant Major by any chance

No lol....Sport Gold Metallic!!

**35th-ANV-SS** · 01-31-2010, 11:41 AM

More than likely what Wesman said.

Is your radio stock? aftermarket? Are you running any amplifiers?

If aftermarket with amps, are you running your power cable down the same side of the car as your RCA jacks? That could be picking up noise also.

**lsgunner28** · 01-31-2010, 01:41 PM

Its aftermarket radio with a small amp.

**bigrondownhiller** · 02-01-2010, 01:42 PM

Check your grounds. Also what 35th said. Another thing is make sure you didnt pinch or put a screw through an rca when replacing panels if everything else checks out.

**Sas** · 02-01-2010, 08:12 PM

Sounds like you need some shielded RCA's, or you have a ground wire run next to your RCA wire.

**Smittro** · 02-01-2010, 09:01 PM

Could even be not enough of a ground. Is your ground out from the amp the same gauge as your power (12v) in? If not good idea to get them matched up. Sometimes mismatched wiring to the amp and so forth can cause this. Too much return resistance if the ground is smaller than the hot.. Also what Wes said is always a good idea on an after market HU unless it has a noise supressor built in.. Good of gold RCA's are a must as well..

**Willfully Armed** · 02-01-2010, 10:36 PM

Originally Posted by Smittro

Could even be not enough of a ground. Is your ground out from the amp the same gauge as your power (12v) in? If not good idea to get them matched up. Sometimes mismatched wiring to the amp and so forth can cause this.

your amp ground should be the same size, or larger than your power. makes perfect sense if you understand electictricity.

Your ground should be as short as possible. less than a foot.

Could be a junk amp as well.

Whats your setup?

**Smittro** · 02-02-2010, 02:42 AM

Originally Posted by Willfully Armed

your amp ground should be the same size, or larger than your power. makes perfect sense if you understand electictricity.

Your ground should be as short as possible. less than a foot.

Could be a junk amp as well.

Whats your setup?

Oh I think I understand electricity

(See sig link)

**lsgunner28** · 02-02-2010, 03:07 AM

it did it when i bought the car, it had a 300w amp running pioneer speakers, diff head unit, and 10 disc cd changer. i also hooked up a 700w amp and 12" sub, still does it but didnt make it any better or worse. it has to start at the alternator b/c it changes pitch when i rev the car.

**Sas** · 02-02-2010, 07:08 AM

Originally Posted by lsgunner28

it did it when i bought the car, it had a 300w amp running pioneer speakers, diff head unit, and 10 disc cd changer. i also hooked up a 700w amp and 12" sub, still does it but didnt make it any better or worse. it has to start at the alternator b/c it changes pitch when i rev the car.

Sounds like you need to rewire things to get rid of the whine, the most common cause for it is people running all the wires down one side of the car, rather then running RCAs on one side, and ground, power and remote down the other side.

**97bluebird** · 02-02-2010, 08:04 PM

It could also be cheap ass RCAs too. Try to make sure that none of your wiring is next to any wiring for your car, it's hard to do. I had the same problem when I first put a system in my car.

**Willfully Armed** · 02-03-2010, 08:59 AM

Originally Posted by lsgunner28

it did it when i bought the car, it had a 300w amp running pioneer speakers, diff head unit, and 10 disc cd changer. i also hooked up a 700w amp and 12" sub, still does it but didnt make it any better or worse. it has to start at the alternator b/c it changes pitch when i rev the car.

what kind of amp and sub.

as for wiring, my wires run down the passenger side, no whine.
It does not mean the alternator if the noise correlates with rpm.
bad plug, wire, coil, coil ground. All of these could cause noise, all would correlate with rpm.