Can`t hear my GPS.

[Maritimer]

When ever I connect my GPS to my Aux, I can hear it clearly if it is only on its battery power. However, if I connect the GPS to the Cig Lighter via its power cable, RPM noises over come the sound of the GPS. Even through my headset I can not hear it properly if powered other then its own battery power.

 

Any idea how I can fix this?

 

Thanks

[RPG]

Thats a bit strange alright. I would begin by checking my battery connections to ensure that they are clean and tight. It sounds like you may have a poor ground connection between your acc. plug and your battery.

[gibvel]

By RPM noises do you mean static from the plugs firing or just general engine noise?

[Stoutman]

This is a common problem with automotive audio. There are filters that you can install in the power to your AUX plug that will reduce this noise. My favorite one looks like a small coil of wire wrapped around an iron core and is sold by AC Delco authorized repair facilities.

 

Also, the ground suggestion above is good advice. I would check that first. The reason you are not getting the noise when you run the GPS on its battery is that the noise is entering the system via the AUX power plug. Making sure you have a good ground could reduce this noise. If not go to your local car stereo shop and describe the problem and ask them to recommend a choke or filter.

[Maritimer]

thanks

 

I will check the ground first and see what gives.

 

Cheers

[KiteSquid]

I is most likely a ground loop.

 

This happens when all the devices are not grounded at the same point on the vehecle.

 

Here is a good discription of how it works, and how to fix the problem, however I have not found an isolator on the market with 1/8" plugs on both ends of the unit..... you might be able to cobble someting up and put it in the fairing....

 

 

http://www.bcae1.com/glisoltr.htm

 

Or you could buy this it Radio Shack and modify it for 1/8" jack & plug.

 

http://rsk.imageg.net/graphics/product_images/pRS1C-2160121w345.jpg

 

Clickable image....

 

 

I just did another internet search and found one at WingStuff.com but it costs more, however it is turnkey

 

http://www.wingstuff.com/images//store1/pgroups/4048_image1.gif

 

clickable image..... $29.95.....

 

 

Another thought, you might move the ground for the outlet and the stereo to the same point on the bike........

[HGWT]

I am not saying that this is your problem but, when I hooked mine up I got no audio. I was pissed. Smoked 2 cigarettes and drank 1 beer, then I went over and turned up the volume on the gps itself and all was well after that,

[Maritimer]

I is most likely a ground loop.

 

This happens when all the devices are not grounded at the same point on the vehecle.

 

Here is a good discription of how it works, and how to fix the problem, however I have not found an isolator on the market with 1/8" plugs on both ends of the unit..... you might be able to cobble someting up and put it in the fairing....

 

 

http://www.bcae1.com/glisoltr.htm

 

Or you could buy this it Radio Shack and modify it for 1/8" jack & plug.

 

http://rsk.imageg.net/graphics/product_images/pRS1C-2160121w345.jpg

 

Clickable image....

 

 

I just did another internet search and found one at WingStuff.com but it costs more, however it is turnkey

 

http://www.wingstuff.com/images//store1/pgroups/4048_image1.gif

 

clickable image..... $29.95.....

 

 

Another thought, you might move the ground for the outlet and the stereo to the same point on the bike........

 

 

Thanks. This is the very best. I found 1 at Rat Shack but with the universal connections. Cost me $31 Can but did the job. The sound is unbelievable. Clear as a bell.

 

Thanks all for the replies.

[Dusty]

I have the exact same issue, to the point that I stopped using the audio on my GPS. From the responses above, I got the answer that I needed.

 

Thanks!

[KiteSquid]

So it was a ground loop.

[Maritimer]

So it was a ground loop.

 

Yep so it seems. At least, this ground loop isolator fixed the problem.