Subject: Ground loop part 2, paging bghark/740isport Author: mrnobody : 109 posts Posted on: 2008-11-09 19:00:21

Strange sci-fi whistling from stereo is dropping down page 2 (I wish this board were better about popping stuff back up front) so let's revist here up front.

Found the info on dice site that 740isport pointed out. It all applies to various Japanese cars, and the part recommend has about 6 RCA jacks and a mini-stereo plug. Now, maybe this thing connects to the DSP adapter in some way, but what bghark described, a simple three wire device providing power isolation to the DICE sounds more like what I'm after.

bghark, if you can see that thing you installed easily enough, maybe you can take a look and see what it is? Shouldn't be hard to find on the net if it has a mfg name or part number or something. Just seems like simpler is better.

I'm optimistic it's a ground loop thing. It's happening again today, but my ipod always charges for awhile when I start driving. Later the noise stopped, presumably when the ipod was done charging. That'd certainly be consistent with the issue described in the dice writeup: battery charging causing noise that can be eliminated with a ground loop isolator.

Anyway, see if you can find out what's in your bar bghark, sir, please.

Thanks!

-Mr. Nobody (Noob)


2001 740iL auto, Alpinwiess 3, Style 37 (daily), Style 4 (roadtrips), Orion v2 AE on Euro Fog switch, Quad Brake lights, DICE iPod Controller, 30K
2003 530i manual, Schwarz II, Staggered Style 19 (winter), Style 82 (3-seasons), Quad Brake lights, DICE iPod Controller, 45K

• Ground loop part 2, paging bghark/740isport (url) - mrnobody 2008-11-09 19:00:21 (77 views)
  • Found it! I mounted it next to the Trunk Fuse box above the Batt.. (url) - bghark 2008-11-10 12:19:12 (34 views)
    • OK, let's talk about how it's wired... - mrnobody 2008-11-10 19:54:21 (21 views)
  • Re: Ground loop part 2, paging bghark/740isport (pic) - whiteil 2008-11-10 10:08:45 (55 views)
  • This will do it...FYI. (nt) - whiteil 2008-11-10 10:06:27 (20 views)
    • I think he is looking for an in-line 12v power filter as well as a lower level - bghark 2008-11-10 10:27:41 (15 views)
      • Yes... - whiteil 2008-11-10 10:52:43 (25 views)
        • Audio Filter? - mrnobody 2008-11-11 00:27:44 (11 views)
          • Audio Filter... - whiteil 2008-11-11 01:06:28 (13 views)
            • Here's what a GL Isolator looks like. (url) - mrnobody 2008-11-11 08:19:51 (13 views)
              • DOH! Pic even... (pic) - mrnobody 2008-11-11 08:21:49 (20 views)
                • OK, more sleep is required! (pic) - mrnobody 2008-11-11 08:27:32 (19 views)
  • I will have it by end of the day. :o (nt) - bghark 2008-11-10 09:27:01 (11 views)