» » »

BMW Q&A

Ask Your Question

1991 BMW 325i Question: weird sound through speakers when radio is turned on.

 

Question

girlgeek2, San Francisco, CA, November 25, 2011, 10:47
 Rookie

Hi, this only happens when the radio is on (ofcourse). Any action which utilizes current, such as stepping on the break which means the break light turns on, using a turn signal,turning on wipers gives me an audible "poof" like sound to eminate from the rear speakers. Clearly it must be the sound system (it is the original one) but I don't know where to start. Has anyone experienced this before and do you have any suggestions on where to start. I don't want to install a new radio since, once it's on, there is no problem with the sound...
Thanks in advance!

1 Answer
Flag This
  • Answer #1

    Hal... (see my shops), November 25, 2011, 11:24
    Profile_thumbnail
     Master

    Check for RF interference. Any new bulbs been replaced recently? It's not the radio but the wiring having poor insulation somewhere. Check the basics...

    Flag This
  • Reply

    girlgeek2, November 26, 2011, 07:05
     Rookie

    Thanks for the response. No, no bulbs have been replaced and are all functioning fine. I am sorry I didn't indicate that I am a novice at anything automotive, however, I am an experienced computer hardware troubleshooter. Your answer makes absolute sense, but I am not sure where to start checking the wiring. In the back from inside the trunk or under the dash? Thanks for your help!!

    Flag This
  • Reply

    Hal..., November 26, 2011, 17:56
    Profile_thumbnail
     Master

    It's probably back under the accessory tray where you hear the noises from those speakers

    Flag This
  • Reply

    a-b, March 05, 2013, 22:11
     Rookie

    I'd love to know what exactly can cause such clicks and how to fix that? In my case I tried to disconnect speakers wiring and still can hear these clicks.

    Reply
    Flag This