Noise grrrr, Sound system noise Options

[insec7]

Ok I got a weird problem that I cant crack. I hear this annoying noise out of my speakers wevery time the car is turned on, the pitch of the noise increases as I rev but it doesnt get louder.
Now I know improper ground causes this to happen, but I know I did ground my head unit properly so the other day I did a little test.


So I took out my head unit, and disconnected the ground from the chasis, but the head unit did not turn off, there was absolutely no change in sound/performance of it.
Then I started disconnecting other cables to figure out what grounding it. Finally when I unplugged the antenna cable, the headunit stopped working, this made me go WTF because it just doesnt make sense (to me anyway) So its obvious that the antenna is causing the noise because it serves as the ground.

Does anyone have any experience with this? Any tips/pointers would be greatly appreciated.

Thanks in advance.

[str8thugginit4ya]

Ok I got a weird problem that I cant crack. I hear this annoying noise out of my speakers wevery time the car is turned on, the pitch of the noise increases as I rev but it doesnt get louder.
Now I know improper ground causes this to happen, but I know I did ground my head unit properly so the other day I did a little test.


So I took out my head unit, and disconnected the ground from the chasis, but the head unit did not turn off, there was absolutely no change in sound/performance of it.
Then I started disconnecting other cables to figure out what grounding it. Finally when I unplugged the antenna cable, the headunit stopped working, this made me go WTF because it just doesnt make sense (to me anyway) So its obvious that the antenna is causing the noise because it serves as the ground.

Does anyone have any experience with this? Any tips/pointers would be greatly appreciated.

Thanks in advance.

Did you run your RCA cables, and your power wire right next to eachother??? When you run your power wire right next to the RCA cables, then the power wire generates noise distortion into your RCA's which come out of your speakers. Most of the time, it's either your ground, or what I just explained. So before you go checking your antenna, I would suggest you make sure you didn't run your RCA's and Power wire on the same side of the car. Seperate them, put one set of wires on the Drivers side, and the other set on the passengers side. If that is not your case, then I would suggest checking your AMP ground wires. More than likely, your amp ground wires are to be proven faulty than your deck's (I am not saying that as 100%, but read on). But usually aftermarket deck are run with the factory ground and antenna, so that probably wouldn't be your problem. For your amp ground, make sure you shaved off the paint around the bolt and body of the car where you are using your ground. You would want the ground touching PURE metal. Let me know if this helps.


-Ryan