russoxley187

when I connect my laptop to my stereo i get killer feedback in the speakers.
But when connecting my iphone it gets no feedback.
Is my laptop not grounded good?
how do i change that?
any suggestions?

2k1Toaster

Are you powering the laptop off of (a) its battery (b) the cig lighter port or (c) a dedicated wire?

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russoxley187

D: Power inverter...

That way I can power a bunch of other stuff too...

2k1Toaster

Well you`ve answered your own question.

Power Inverter = Noise (Electrical) which means humming/whining/buzzing in audio and flickering/waves in video along with decreased electronics life. Also if this power inverter that you are powering lots off of is all connected to your cig lighter port, then I hope you have fire coverage on your car insurance.

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russoxley187

nope, its connected to a second battery that run my hydraulics.
I ran it before with a different inverter and no problems.

2k1Toaster

Well the source of your problems is the inverter. Since you recently changed it, a ground is a good thing to check. Better yet replace it.

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russoxley187

replace it?
its brand new..
I bought a ground loop thingy...


that fixed most of the noise...
I'll check the ground.

2k1Toaster

replace it as in stop using an inverter.

A ground loop isolator is nothing more than a bandaid. But if your ears cannot tell the difference between the sounds, then good for you, but a GLI destroys audio quality.

The fact that is "fixed" or improved it, suggests it is the ground or insufficient wire guage to the inverter. Or both.

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russoxley187

i wanna say its a 2 guage to the inverter...
I'll check the ground later...