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View Full Version : Do Ground Loop Isolators Kill Sound Quality ? Derek A. 01-02-2006, 01:36 AM I just got a Roady XT XM radio for the e34. Blau headuint has a 3.5 mm aux in. When I run it through that input it sounds like crap, pickin up lots of whine and noise. I have been told I need a ground loop islolator - wondering if it does anything to the quality of the signal it is isolating. Derek- 90 535i dmurray14 01-02-2006, 01:46 AM I don't know, but here's my opinion: ground loop isolators are a band-aid solution. Do they work? Yes, for most purposes. Is it the "right" way to do it? No. Fix things right - check your grounds. What is the roady powered off of? Cigarette lighter? Make sure its grounded properly. Dan Derek A. 01-02-2006, 02:13 AM The head unit is grounded using the OEM wiring and the Roady is powered off the cigarette lighter for now. Was planning on running a different power feed - so its out of sight. dmurray14 01-02-2006, 01:08 PM The head unit is grounded using the OEM wiring and the Roady is powered off the cigarette lighter for now. Was planning on running a different power feed - so its out of sight. Try that. It might even behoove you to run ground it to the radio's ground so you're eliminating any potential difference. Dan centerpunch 01-03-2006, 11:01 AM A ground isolator is cheap and the sound quality is fine. Plug it in and forget about it. Radio Shack has them. http://forums.bimmerforums.com/forum/showthread.php?t=460178 |