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Discussion Starter · #1 ·
As you may have read, I recently connected an XM to the iMIV that is hooked into the HU650. When I turn off the car's ignition switch, while listening to the XM, there is a very brief, loud, "pop" from all the speakers. The level of the line-out volume on the XM to iMIV does not seem to affect the "pop". The "pop" occurs whether or not the XM is connected to a switched or unswitched power source.

The "pop" does not occur when I turn off the ignition switch while listending to AM, FM or the iPOD

How can the "pop" be eliminated?

The iMIV and iPOD are powered via add-a-circuit at fuse #16 at the end of the dash on the driver's side. The XM is powered thru switched fuse #11 (accessory power) in the driver's foot well via add-a-circuit. The iMIV, iPOD and XM are all grounded to the passenger door gounding post.

Thanks
Oz
 

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Discussion Starter · #3 ·
Re: XM, HU, iMIV issue (mrg_Ed)

As soon as I turn off the key.

Update
The issue has been resolved. The XM Commander instructions said that maxing the volume on the line-out may cause distortion. I had the line out set low. While tweaking the various settings, I maxed the line-out volume on the Commander, noticed that the volume, while switching sources between iPOD, AM/FM, and XM, the volume was about the same. Plus, there was no distortion in the XM broadcasts.

I then turned off the car and there was no "pop" sound from the speakers. I guess to compensate for the low line-out on the Commander, I had the amp turned up too high and that was the source of the "pop" since I would turn off the car without turning down the volume.

Another day at the "Rock".
Oz


Modified by Ozzie at 5:39 AM 5-8-2009

Modified by Ozzie at 5:40 AM 5-8-2009
 
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