Engine Whine using DICE - Page 2

MiCkEy · #11 06-30-2007, 12:05 AM

rearranged and the whine is less noticeable.

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TerminatorX5 · #12 07-02-2007, 01:17 PM

MMM,
so the whine is still there but is not at the bothering levels, right?
How did you have wires routed in the first place and which route did you choose for the second time?
I would think, that you can go either on left edge or on the right edge of the car, right?

Can you share the knowledge, please?

Tom G. · #13 07-02-2007, 04:33 PM

Quote:

Originally Posted by TerminatorX5

MMM,
so the whine is still there but is not at the bothering levels, right?
How did you have wires routed in the first place and which route did you choose for the second time?
I would think, that you can go either on left edge or on the right edge of the car, right?

Can you share the knowledge, please?

Try relocating the module to a different area of the vehicle, away from other electrical devices or power wires.

MiCkEy · #14 07-03-2007, 08:17 PM

I just rearranged the extra cable in the side of the trunk and used some cable ties to make it into a loop. That did it.

Blademan007 · #15 07-09-2007, 11:13 AM

Quote:

Originally Posted by MiCkEy

I just rearranged the extra cable in the side of the trunk and used some cable ties to make it into a loop. That did it.

Watch the loops, or you'll soon be picking up FM.

My cable excess sits under rear seat, and cable run goes up center console. I have big time whine/alternator noise, so don't go that way. But it is an e46. I'd like to move it to my 4.8, but it was a royal PITA to run the cable. And with the noises, I don't really dig my current setup anyway. Probably run Aux and USB-to-12v to center console storage bin.

lvlheaded1 · #16 07-25-2007, 01:14 PM

Quote:

Originally Posted by Lin

I just had the same problem. I moved the wires to another area and the noise is gone.

Same problem as well but its been getting progressively worse. Never noticed the whine after the install, but in just the last couple of weeks it seems to be getting louder. Whine is noticeable in both HD mode and IPOD mode.

The actual module itself is sitting underneath the front passenger seat with the cable ran under the carpet trim passenger side door wells, behind the pillar trim and under the rear seats.

The ipod cable (which is really too short by the way, is there a longer one that's available?), I ran under the passenger seat rail, along the crease between the back carpet and the front carpet and into the center console.

Odd thing is, it seems to matter if there is someone in the seat or it its empty. Not sure if its because the seat is in a different position or not.

I'll try moving the cables around like someone suggested, but I'm not sure how that would help since I haven't move them around since I installed it.

TerminatorX5 · #17 07-25-2007, 01:34 PM

Let's run a chain of thought -

a car is running on DC power with (-) being a common plane throughout the car. DC power does not induce currents in adjacent insulated wires (other than at the power up and power down cycles).

the electrical turbine in the car (alternator) produces an AC current that is being converted via bridge into DC power and then stabilized at a certain charging level (let's say, about 13-14VDC). The AC currents will induce AC currents in adjacent insulated wires. Longer the wire, more chances it will pick up induction, any loops in the wire will magnify the induction effect (think of charging circuitry in the keybob and the ignition coil). Chances that the ground plane is "infected" with the AC current are high. Moving and relocating the cable will reduce, diminish or eliminate the "whine" but there is no solid scientific back-up, as what and how to do this task exactly, other then trial-and-error method.

Introducing a shielded cabling would eliminate the induction into the wires protected by the shield that is grounded, unless the shield is picking up the induction from the ground itself. In this case, the shield is actually magnifying the "whine" as it is always next to the signal wires

.
Possibly, to avoid this, the shielding would need to be grounded via Ground Loop Isolator that will prevent the AC currents from entering the shield directly. This would provide electrical solution to the issue.
The induction phenomenon is of electromagnetic nature, so, naturally, in addtion to the electrical insulation via GLI, magnetic insulation may also prove helpful.

I would welcome comments, suggestions and solutions - just have a pity on old fellow, don't hurt me too much...

Tom G. · #18 07-25-2007, 01:47 PM

Agreed on the cable length, which is why we offer this kit for a shorter cable run:

DICE iPod Integration Kit for BMW (Radio Interface R40)
http://www.europeanautosource.com/pr...roducts_id=660

lvlheaded1 · #19 08-06-2007, 03:29 PM

Whine was getting really bad there for a while. Moving the DICE HD itself around didn't help at all. Went into the back side panel where the wires are connected and noticed the cable and the connectors where next to and partially wrapped around another bundle of wires that was in there. Moved the DICE cable away from the wire bundle and whine is gone! Didn't need to use a ground loop isolator but I store bungee cord and jumper cables in this back area too so chances are I might accidentally move those cables back together so I might put one in there anyway.

I think that you might be able to get some whine relief by moving around the cables in other areas, but the back panel area seems to be the most critical.

knch · #20 10-01-2007, 04:49 PM

Quote:

Originally Posted by lvlheaded1

Whine was getting really bad there for a while. Moving the DICE HD itself around didn't help at all. Went into the back side panel where the wires are connected and noticed the cable and the connectors where next to and partially wrapped around another bundle of wires that was in there. Moved the DICE cable away from the wire bundle and whine is gone! Didn't need to use a ground loop isolator but I store bungee cord and jumper cables in this back area too so chances are I might accidentally move those cables back together so I might put one in there anyway.

I think that you might be able to get some whine relief by moving around the cables in other areas, but the back panel area seems to be the most critical.

I had my DICE Ipod module, installed to a BMW X5 4.4 for 4 months and the whining noise started 1 month ago. DICE sent me a replacement module and it didn't work. They told me to ground the module and it didn't work. I had just tried your suggestion today by moving the rear wires around and it worked so far. For my situation, I also had to move my module to another position. If I left the module in the original position, it does not work. I hoping the whining will stay away forever. It is very annoying. In the meantime, I also ordered the flexible magnet sheeting from McMaster-Carr. I will update everyone in a day or two if the whine noise does not stay away. Thank you! IvIheaded1 and all who contributed to this thread for the great suggestions.

UPDATE:

It was a sucess. I drove the X5 all afternoon yesterday and this morning and the whinning noise is gone.

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