Naesstrom

I think I managed to do that... I but a small loop between one of the screws in the chassis to the groundcable going into the inverter but it didn't seem to help... yesterday after I connected the cables to the front set of speakers I noticed that my screen was going crazy to... buzzing sound was much louder and the screen was flickering like mad...

I tried using a extension cable from a power outlet and then I didn't have this problem, sound was amazing so I hope I can get rid of this problem and just start to enjoy my 5.1 setup...

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rumy

Hi,
Ok so its been a while, as most of you know i am using the XMD1000 and am gettting ground noise in the line in.

I tried grounding the XMD chassie as most of you suggested and still no difference. I am now using a computer with a DC to DC power supply. when I mute the line in it is perfect, it is also perfect with the line in unmutted, however as soon as I connect the XMD and it is operational it has a buz and hmmm..... i also get the alternator whine, what would u guys recommend!!!

llajumpvid

I have gone through the exact same problem since I installed the XMD. Grounding the chassie worked partially, but I still had some noise. I finally took the cable apart and found that the ground in the cable at the serial connector wasn't very good. I resoldered it and it made a very big difference. There still is a very slight whine but is 10x more tollerable than before.

Just saw this. It may be the solution
http://store.mp3car.com/ProductDetai...Code=SAT%2D007

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bilalsadak

Hello mate,

I am a bit of a novice at all this stuff but have still managed to fit a freeview tuner and DVD/Divx player into my Mk4 Golf GT TDI 150 (both display onto MFD). However, I am getting background noise. I have a ground loop isolator but am not sure where each wire attaches.... stupid i know! Could you please help with either a diagram or by posting where each of the four cables attach (Red and black input And Red and black output). Thanks

LinuxRacr

I'm curious about this as well, as it is the latest problem that I must eliminate.

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barrcode

great thread! i have a similar problem...

i'm running my laptop off of a diehard deep cycle marine battery, through a black&decker 400w inverter. everything was peachy the first few days, but last night the inverter (only the inverter, no speaker noise or anything) started making a huuuge high pitched whine. after reading some of these posts i'm kicking myself in the *** for not thinking to ground anything.

my question is... could i get away with only grounding the battery? i'd rather not have to pull apart the inverter to ground the chassis.

i also assume that my inverter is toasted... anyone care to prove me wrong???

thanks for the help!!!

borikru

If you own Intel's D945GCLF, you might want to read this post:
http://www.mp3car.com/vbulletin/show...39#post1255639

Couldn't eliminate whining/noise during boot coming from Rear Spk output ("blue" jack normally used as line-in and as rear spk output in 4-channel mode), so had to change back to 2-channel mode. Tried all reasonable solutions described on this thread.

jaguar999

I am facing the noise problem when i connect my laptop to the DC-DC power supply. Its working fine when i run it on the laptop battery.

Can anyone tell me how to MAKE a isolator on my own.(i guess its different from ground loop...)

regards

MP3Car.com

 

jake789

Your problem is still ground loop. When you run off the laptop battery the ground is "isolated" from the rest of the vehicle electrical which is why there is no whine.

Most likely you need to change the ground location for your psu?

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