Try this: http://us.lexusownersclub.com/forums/index...showtopic=20145
It could be your telephone mute system is coming on
;)
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I also have this problem with my 99 RX300. The volume will drop out almost completely (if you turn the volume ALL the way up, you can faintly hear it). Then when it comes back on it scares everyone in the car. I don't have a phone set-up in my car, but I checked with a dealership and they have a 2006 GX470 with the SAME problem. They've replaced the amps & the head unit and still haven't figured anything out. I'm so frustrated. Sometimes it seems like it's triggered by bumps in the road, but other times it pops in & out for NO reason. aaarghh!!! I hope people are still checking this thread out and can help me. jwilliams at cableaz dot com
Hi there, I'm from Greenland.
I'm having exactly same problem on my 2001 LX470. The sound disappears from the ML sound system now and then, and it doesn't seem like it is caused by a loose connection! ...sometimes when the sound finally returns, it happens with a higher volume setting! ...so I was suspecting the amplifier to being the problem, ...untill I read your add about the 2006 GX470.
Please tell me if you have succeeded solving your problem? Thank you in advance.