static from xm radio

I am using the Delpi Roady XT which I have mounted to the top of my dash in a 2002 cavalier. The Delphi reciever is the newer model which has the sure connect with it. I have the clip part of the sure connect connected to the bracket inside my trunk that holds my FM antenna. Signal there is great. The roof mount intenna of the reciever is on my roof infront of the moon roof about 2 inches back from the windshield. The roof mount antenna wire runs along the weather stripping to the passenger side of the carto the inside and down the A pillar to the passenger side under the carpet, then up under the dash to the reciever. The clip in my trunk runs along the passenger's trim panel up the same way than to the reciever. The problem I am having first off is that I get static (not loud) when I listen to XM, but then again I have that when my car is in ACC, which probably is normal. My real problem is that when I use the power window for the passenger side, I get static through the speaker, but not when I use the driver's window. What could I do to solve this? Thank you in advance.

Leave the window up?

Your only option, it seems, is to relocate the antenna cable. A POSSIBLE fix might be putting a small shunt cap across the window motor leads to soak up that RF. 24V (or higher) 10µF (or smaller) should do the trick nicely.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

is a shunt cap by any chance a cap that snaps over a wire that has metal in it or something like that?

In most cases the sure connect is not the best way to go it was just something that XM came up with after the FCC told them that they had to cut the power of their FM modulators drastically. It works in some vehicles well but in most cases the way to go is thisFM Modit connects the XM directly into the antenna input of the radio and clears up I would say 99% of static on your car the only additional thing you will need are two antenna adapters (if it is the stock radio, if not you need none) one is a normal chevy to universal adapter and the other is the universal to chevy which is normally called a reverse antenna adapter.


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2008 Scion xB
Pioneer AVIC-D3
RF 3Sixty.2 sound processor
Stock speakers (for now ;))

Yea. I have seen those before. The wireless FM modulater that comes with the reciever has a good chance of getting interference since the distance between both my antenna is roughly 5'. But the static is the same as it is with my regular FM radio, so it doesnt bother me. What does bother me is the static I get when I power my passenger window. Now should I just simply push my reciever antenna wires further away from the wires for that window, say pushing them further under the carpet towards the center of the car?