Need HELP with alt whine

[pityocamptes]

If I have two batteries in my rig would I use the JDM or something similiar on each post or just use one post, run the leads to the components, and then tie one more wire in from ground of the second battery to the first one that has the JDM? Thanks.

I will probably attempt to make my own, doesn't look that hard. Thanks.

[1moreamp]

I have two battery's also, And I setup my super ground to both negative terminals as one common point. But when my truck is running both battery's are connected together through a 200 ampere relay to power my stereo as a common power supply.

Your system probably will be different. Mine is built for high current loading and I doubt your system will need that sort of setup.

The big thing to remember if your building your own is to use 4 gauge cable or better ( 2 gauge is preferred), and to solder all cable ends, because crimping just is not a good enough connection method. I use the gold plated connectors you can find at any car stereo store as they don't succumb to corrosion like tin plated or anodized connectors.
You should also clean each connection point with a wire brush and solvent so a good clean contact is achieved.

The whole idea is to improve grounding circuitry so all points of the engine compartment appear electrically at the same exact potential weather it be DC or AC noise, and to use the battery as a filter or sink for all the noise generated by the alternator and distributor system. Both of which are the main culprits of the noise your system is picking up. And the battery makes a great filter just like a huge capacitor would.

I wish you well on trying this. I have seen it work extremely well on several occasions this year alone. If by chance you should need more help please feel free to e-mail me. I will make myself available to help you resolve your issues.


PS: I hope you have also common grounded all of your stereo equipment to a common ground point also, as this is just good practice when installing after-market stereo gear.

[I Am An Idiot]

Hey Pityo, don't forget to let us know how the 45 dollar grounding kit works out for you.

[ppia600]

I'm wondering what he's figured out so far. I want to see the results of doing the underhood "grounding" kit alone, without any other improvements inside the vehicle. Starting with that and posting results, then doing other improvements one at a time and posting their results.



"PS: I hope you have also common grounded all of your stereo equipment to a common ground point also, as this is just good practice when installing after-market stereo gear."

This would be something to do AFTER the underhood "grounding" so the results won't be skewed. Of course improving the "ground" plane of the components will improve things, but that's not going to help the "cause", its just a bandaid... right?? That should be saved for last since this isn't a grounding issue, its coming from under the hood.... right?

[1moreamp]

Now now children don't make me call your parents

[ppia600]

I don't know what you're talking about

[1moreamp]

Now what are you two boys gonna do if he has e-mailed me and we have taken this private to solve his issues ?

[I Am An Idiot]

Hey Pityo did you ever get this problem figured out?

[pityocamptes]

No, my amp took a dump (got water in it while out 4x4ing So I'm looking at getting a new amp. I did solve some of the noise. I have two batteries in my rig. I noticed that the ground and hot lines were kind of crappy, so I replaced them.

I also noticed that the alternator was charging constantly at ~14.00 volts. Well I ran the wrong wire to the second battery from the isolator as well as the charging line.

I thought that I had hooked up the charging line from the alt to the isolator (for some reason the older manufacturers loved using the same colored wires, as well as charging schematics that make no sense), it actually was the line for my HVEI.

So, my first battery was being charged but the second one was not and eventually died (found out the hard way as this battery supplied voltage to the HVEI unit). Once I got this taken care of the alt was no longer trying to put out so many volts. The noise came down considerably but not completely gone, you can still hear it.

I'm hoping this weekend to run some ground wires from the batts to the cab. I may also see what happens when I run the HU and EQ grounds to the battery.

[zigzagflux]

Originally posted by pityocamptes
I did solve some of the noise...

I noticed that the ground and hot lines were kind of crappy...

I ran the wrong wire to the second battery from the isolator as well as the charging line...

The noise came down considerably but not completely gone...

Good for you !!

Well, you can see that simply removing/repairing your ground loops will go a long way in removing noise. It has been my perspective all along that this is all that's needed for a noise-free system.

You see, pity, you could install this $45 orgasmatron (now don't anyone get bent out of shape), and at the end of the day, you'll still have noise if you don't fix your ground loops. Then again, if you fix all your ground loops, you will likely find the orgasmatron was never needed in the first place.

Take heart, you're not alone.