XM/Sirius Aftermarket Antenna Location?
Last Wednesday I had a new Kenwood DNX6960 installed in my '08 coupe. It replaced the factory standard non-Bose audio system with OnStar and XM. The factory speakers and amp are being utilized. Everything works great except the XM radio. The XM antenna (as well as the new nav GPS antenna) was installed on top of the center dual a/c ducts (atop the one on the left). I am now experiencing extreme loss of signal with the XM (the navigation works great, bye the way). It is so bad that reception is now only intermittent. The interruptions are madening. It works fine as long as the car is sitting still, but as soon as it goes in motion, the signal begins to fade in and out. It does it just in my residential neighborhood with no tall obstructions around. Then you can go for two or three minutes and it is good until it fades again. Hardly ever had a loss of signal with the stock XM set-up (I know that the stock antenna is located in the outside mirror pods). Where do you guys mount your XM or Sirius antenna when you swap out the factory set-up? And do you get good reception? I am located in the Southeast US if that matters. Is there any way to re-use the factory antenna? (The new XM tuner was located next to the fuse block in the passenger foot well).
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I had the same experience with my 2007. Bought an xm antenna online and installed it on the glass at the top of the rear hatch, virtualy invisible. Cured the drop outs completely. The only time I ever had another dropout was going thru a tunnel. Best $20 I ever spent!
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i would like to know also where the best hidden place to put this is?:lurk:
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Did you consider using the OEM Sat antenna connection, the yellow/orange one, that's the 'normal' solution for the SIRIUS upgrade.
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Originally Posted by Knob Jockey
(Post 1576723772)
Did you consider using the OEM Sat antenna connection, the yellow/orange one, that's the 'normal' solution for the SIRIUS upgrade.
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Originally Posted by vetteright
(Post 1576721694)
Last Wednesday I had a new Kenwood DNX6960 installed in my '08 coupe. It replaced the factory standard non-Bose audio system with OnStar and XM. The factory speakers and amp are being utilized. Everything works great except the XM radio. The XM antenna (as well as the new nav GPS antenna) was installed on top of the center dual a/c ducts (atop the one on the left). I am now experiencing extreme loss of signal with the XM (the navigation works great, bye the way). It is so bad that reception is now only intermittent. The interruptions are madening. It works fine as long as the car is sitting still, but as soon as it goes in motion, the signal begins to fade in and out. It does it just in my residential neighborhood with no tall obstructions around. Then you can go for two or three minutes and it is good until it fades again. Hardly ever had a loss of signal with the stock XM set-up (I know that the stock antenna is located in the outside mirror pods). Where do you guys mount your XM or Sirius antenna when you swap out the factory set-up? And do you get good reception? I am located in the Southeast US if that matters. Is there any way to re-use the factory antenna? (The new XM tuner was located next to the fuse block in the passenger foot well).
Also make sure the installer put the thin metal stick on plate down and both ant are sitting on it, if only the GPS ant is on the plate and not the XM ant that could be the cause of the issue also. |
Originally Posted by okie08vette
(Post 1576728625)
I installed both my GPS and XM ant in exactly the same spot. I replaced the standard head unit in my 08 with a Pioneer Z120 and both XM and GPS ant are exactly where yours are. I have no problems with recerption at all. Based on what you are experienceing I would suspect a bad ant or a loose wire esp since it only happens with the car in motion. I would have the installer replace the ant and see if that makes any difference.
Also make sure the installer put the thin metal stick on plate down and both ant are sitting on it, if only the GPS ant is on the plate and not the XM ant that could be the cause of the issue also. |
I initially had my aftermarket SIRIUS antenna on top of the center AC ducts. When I first installed it the reception wasn't terrible, but I had enough drop outs that it was annoying. Since I wasn't using the center speaker I eventually took it out (to remove the large magnetic metal shield covering the antenna), reception improved a lot, but I still had the occasional unexplained drop out. I eventually fabricated a small metal bracket out of sheet metal that sits in the same place as the original center speaker, it's 1/2" deep and held in place by 2 of the 4 speaker mounting screws. My sat radio reception is now very good.
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Originally Posted by markcz
(Post 1576733831)
I initially had my aftermarket SIRIUS antenna on top of the center AC ducts. When I first installed it the reception wasn't terrible, but I had enough drop outs that it was annoying. Since I wasn't using the center speaker I eventually took it out (to remove the large magnetic metal shield covering the antenna), reception improved a lot, but I still had the occasional unexplained drop out. I eventually fabricated a small metal bracket out of sheet metal that sits in the same place as the original center speaker, it's 1/2" deep and held in place by 2 of the 4 speaker mounting screws. My sat radio reception is now very good.
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Originally Posted by Knob Jockey
(Post 1576723772)
Did you consider using the OEM Sat antenna connection, the yellow/orange one, that's the 'normal' solution for the SIRIUS upgrade.
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