I'm getting really bad line noise when using the cigarette adapter. I'm
thinking about putting the power converter directly in-line with the fuse
box or battery. Is there a better power converter to use (5v, 2000mh) and/or
is there a good line filter to take out the interference & noise?

In article E0W3e.66052$le4.54023@fed1read04,
"snoopdoggy" wrote:

I'm getting really bad line noise when using the cigarette adapter. I'm
thinking about putting the power converter directly in-line with the fuse
box or battery. Is there a better power converter to use (5v, 2000mh) and/or
is there a good line filter to take out the interference & noise?

It's a ground loop between the power adaptor and the audio cable's
shield. There's no wiring track that you can do to get rid of it. You
need either an isolated power adaptor or a set of ground loop isolation
audio transformers.

Would one of these work?

http://www.pac-audio.com/products/electronicfilters.htm


"Kevin McMurtrie" wrote in message
...
In article E0W3e.66052$le4.54023@fed1read04,
"snoopdoggy" wrote:

I'm getting really bad line noise when using the cigarette adapter. I'm
thinking about putting the power converter directly in-line with the fuse
box or battery. Is there a better power converter to use (5v, 2000mh)
and/or
is there a good line filter to take out the interference & noise?

It's a ground loop between the power adaptor and the audio cable's
shield. There's no wiring track that you can do to get rid of it. You
need either an isolated power adaptor or a set of ground loop isolation
audio transformers.

In article AE04e.68001$le4.60691@fed1read04,
"snoopdoggy" wrote:

Would one of these work?

http://www.pac-audio.com/products/electronicfilters.htm

No. The problem is that power can return along the audio shield. You
could filter the car's power to perfection but you'd still get digital
noise from the MP3 player itself. You need to break that electrical
path using an isolated power supply or an audio isolation transformer
set.


http://www.crutchfield.com/S-46kAE8R...sp?g=181150&I=
127SNI1

http://www.crutchfield.com/S-46kAE8R...sp?g=181150&I=
127SNI135



"Kevin McMurtrie" wrote in message
...
In article E0W3e.66052$le4.54023@fed1read04,
"snoopdoggy" wrote:

I'm getting really bad line noise when using the cigarette adapter. I'm
thinking about putting the power converter directly in-line with the fuse
box or battery. Is there a better power converter to use (5v, 2000mh)
and/or
is there a good line filter to take out the interference & noise?

It's a ground loop between the power adaptor and the audio cable's
shield. There's no wiring track that you can do to get rid of it. You
need either an isolated power adaptor or a set of ground loop isolation
audio transformers.

Thanks!

"Kevin McMurtrie" wrote in message
...
In article AE04e.68001$le4.60691@fed1read04,
"snoopdoggy" wrote:

Would one of these work?

http://www.pac-audio.com/products/electronicfilters.htm

No. The problem is that power can return along the audio shield. You
could filter the car's power to perfection but you'd still get digital
noise from the MP3 player itself. You need to break that electrical
path using an isolated power supply or an audio isolation transformer
set.


http://www.crutchfield.com/S-46kAE8R...sp?g=181150&I=
127SNI1

http://www.crutchfield.com/S-46kAE8R...sp?g=181150&I=
127SNI135



"Kevin McMurtrie" wrote in message
...
In article E0W3e.66052$le4.54023@fed1read04,
"snoopdoggy" wrote:

I'm getting really bad line noise when using the cigarette adapter.
I'm
thinking about putting the power converter directly in-line with the
fuse
box or battery. Is there a better power converter to use (5v, 2000mh)
and/or
is there a good line filter to take out the interference & noise?

It's a ground loop between the power adaptor and the audio cable's
shield. There's no wiring track that you can do to get rid of it. You
need either an isolated power adaptor or a set of ground loop isolation
audio transformers.