LightningG37

Every once in a while when I go from a pre-set XM station to an FM, the rear speakers go "BBRRAHHH!" REALLY LOUD! I quickly go back to the XM and when I go back to the FM its usually fine. What gives? I'm pretty sure it only happens when going to FM and it comes from the rear speakers. Also, after this sometimes it has a softer "ppt" noise when I switch between FM station which goes away but I don't think it ever happens with XM. Anyone know what this is? I'm afraid my speakers will blow!

flux303

Sounds like something is seriously wrong. I'd take the car back to the dealer and ask them what gives. Should be a warranty repair.

joeposter

Could be a Nickelback song on the radio.

LightningG37

Yeah, I suppose I should do that, its just that its not super frequent and the chance of actually getting it to happen while I'm there is unlikely. Maybe I could tape it...

cdebnil

Happened to me too then noticed rear speakers are barely working...change your fader to the rear speakers to see if its working...I'm taking it to the dealer on Monday

likwidfuzion

GSM buzz?

cdebnil

No way...this is high bass really low frequency...def not gsm buzzing...its like someone turned the volume up all the way and did a bass test mixed in with some crackling

LightningG37

That is a perfect description of what mine is doing! If the weather is nice enough for a drive today, I'll pull off the cover and do that fade test. Is it low on yours all the time or just following a buzz?

cdebnil

No it's permenantly lower....Like maybe 10% of of the output of the front speakers

LightningG37

Interesting. Mine is not that low. I would put my rear speaker output at 30-50% for the front, but not 10%. I'd be interested in hearing from those without this problem to know what the typical output is on a well functioning system.

LightningG37

Actually, I just played some music with a fuller range and the bass in particular are at about 10% on the rears

cdebnil

They replaced a fuse...Supposedly there's two and I must have replaced the wrong one...looks like its fixed now..this might be prevalent for a lot of people...I'm the third person I've seen on the board with a prob with rear speakers...Everyone should send their faders to the rear and check if your speakers are working

LightningG37

was it like an under dash flat fuse or something integrated with the system?

cdebnil

I didn't ask but he said they didn't have to take apart the dash etc so it leads me to believe its the normal fuse box.