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using sansa clip+ in car

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arek00:
i have a problem with my sansa clip+ in my car. below my test configurations:

1. ac charger >> sansa >> car radio = ok
2. car charger >> sansa >> phones = ok
3. car charger >> sansa >> radio = there is no sound after connect charger and sound is back after disconnecting

can you check that you have the same? any ideas how to fix it?

saratoga:
You may have a ground loop due to how your stereo is wired (basically power flowing through the headphone to the stereo and then through that to the battery).  I'm not sure what the best way to solve it would be. 

TurboZutek:
This can be solved very easily. You must remove the GROUND connection on your car charger, the easiest way is to cover the two prongs at either side of the cigarette lighter jack in black electrical tape and leave the centre pin in place.

Everything will start working then.

Chris...

saratoga:

--- Quote from: TurboZutek on April 01, 2012, 04:07:41 PM ---You must remove the GROUND connection on your car charger, the easiest way is to cover the two prongs at either side of the cigarette lighter jack in black electrical tape and leave the centre pin in place.

--- End quote ---

Since the ground in this case would be the negative terminal of the battery, doing that would be equivalent to unplugging the player.  That will obviously prevent a ground loop, but will also mean that he won't be able to use the charger.

TurboZutek:
The signal ground for the Audio will become the ground for the charger and the amplifier in the CLIP+ will stop ground-loop oscillating.

I know it works because my car is hooked up that way right now. You can test this theory by running the player, plugged into the charger by USB and then just touch the ground connection on the charger to the ground ring of the cigarette socket; instantly the audio dies.

Bizarre design flaw in the CLIP+ and an even weirder workaround, but I've been using the player this way for several months now, no damage to the player or the head unit.

/Try it

Chris...

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