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Calls may be recorded for training and quality control purposes.

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Portable player + aux jack = unwanted noise?

I put in a dock-and-play satellite radio recently, connecting it to my head unit through its aux input. With channel guide in hand, I began flipping stations in earnest, ready to program in my favorites. But something was happening — a "swirling" sound that got louder and faster as my engine speed increased.

First I disconnected everything, cleaned all my contacts, then reinstalled. No change. Tried turning the built-in FM modulator on/off. Still no change. Checked the antenna wire. Nothing. What was I going to say when everyone on my block found out that a guy that works at Crutchfield can't even hook up a portable satellite radio in his car?

I didn't have any luck finding a solution online, but I knew I couldn't be alone with this, and I took comfort in the fact that I'm lucky enough to work at a place full of experts who are trained to solve problems like this one. And my expert co-workers came through for me. "It's a ground loop," I was told. "You need to move the ground wire from your cigarette lighter to the same place as the one from your stereo." Which, I am certain, is the right way to do it.

But I found an easier way, right on Crutchfield's website: the PAC SNI-1/3.5 noise filter. It's a little black box with male/female 3.5mm miniplugs that you stick between your player and your stereo.

PAC SNI-1/3.5 set up

The SNI-1/3.5 goes between your player and your stereo's aux jack.

I don't know what's in that little box, but whatever's in there completely killed the noise I was experiencing. Problem solved, and installation took 10 seconds, maybe 13. So if you've plugged in a portable player to your new stereo's aux jack, and you're hearing a hiss, a whine, a hum, or a click, this little black box could be the answer to your problems. After gushing about it, I tested it with a co-worker who was having a similar problem, and he promptly ordered an RCA version

PAC SNI-1/3

The PAC SNI-1/3 has 3.5mm connections

PAC SNI-1

The PAC SNI-1 has RCA inupts and outputs

If you have a similar problem, give us a call. Our Advisors will be glad to help.

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