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Install Garage & Help Desk You've got the radio, now which cable goes where? Got questions about factory installed radios in your car? Ask any installation or help questions here and someone will get to you soon.

 
 
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Old 01-01-2006, 10:35 AM   #1
jodius4
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Default Sirius in car static siriusly giving me a headache HELP

1st post here. so far sirius is driving me nuts. everyone who is here knows the sirius tech support is fairly useless. so here i am. i have a sportster R and when set up in my car i get RPM noise while the engine is running. its sounds exactly like a cheap amp in a car that needs a ground loop isolator. anyways its driving me nuts. i have a nice clarion deck with an AUX in, so i am not using the FM modulator. when my MP3 player is hooked up to the AUX in, there is no such noise. no noise while listening to FM or CDs, only with the sirius radio on. the second i power the sirius radio off it goes away. does anyone have any ideas for me to try? i am good with car stereos and i have ruled out everything in my system. this IS an interference problem with the sirius radio itself. anyone else have a similar problem? any suggestions?
thanks
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Old 01-01-2006, 10:47 AM   #2
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Quote:
its sounds exactly like a cheap amp in a car that needs a ground loop isolator
Silly Question but have you installed a Ground Loop Isolator on the RCA Cables going to your Aux In?
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Old 01-01-2006, 05:15 PM   #3
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lol i should have mentioned yes i have tried a ground loop isolator on the input. also, looking further into this i think i might have 2 seperate noise problems. i have the annoying zippy engine noise, and before i even start the car and just listen to it, the overall quality of the sound is just awful. unlistenable in my opinion. trying the radio in my home dock hooked up to my home stereo it does sound decent. in the car though, it sounds like a tape recording of an AM radio being played thru a bullhorn lol. constant fuzz with the engine noise on top of it. anyone? please? tech support is completely useless (as all who have ended up here know) and i have atleast 20 hours into trying to make this thing work not including the 12 hrs ive spent on the phone with support. is XM this difficult???
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Old 01-01-2006, 05:41 PM   #4
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Alright; it sounds like you have a bad ground in your vehicle. How is your receiver powered?? Through the cig. lighter. If it is; then chances are your lighter isn't grounded properly (as is custom with most vehicles). You need to find an independant ground for your radio; or re-wire your lighter plug so that the ground goes straight to a section of bare metal chassis (and not to a 'common' ground where all your dash lights / radio / lighter / are attached to a common point).

Second; try using a Power-Line filter. It is sort of like a ground loop isolator but for the power line. When you use your MP3 Player; is it plugged into the vehicle at all (such as the cig. lighter)?

If you have a Multimeter; try checking the Resistance of the ground (Put it on 2k Ohm, touch one end to bare meteal; the other end to the ground part (metal outside) of cig lighter).

Depending on the age of your vehicle; rust; damage; etc... it might just be your vehicle has a bad ground in general.
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Old 01-01-2006, 06:39 PM   #5
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i got it! i was headed out to my car to test those ideas out and i checked with my headphones, and it did sound good with no interference. so now im thinking its my car stereo/amp somehow. when i plugged it all back in it sounded good for the first time. seems somewhere between the car dock and the 1/4 inch phono plug there was a slightly weird connection. if i rotate it and push in hard (lol) it does work and sound fine. since the 1/4 inch phono sounds good with the mp3 player, its probably a weird line out jack on the car dock. i even removed my ground loop isolator and still no noise. hooray... since everyone is sold out of these things, ill give it hell plugging it in and make it work for now and buy a new one in the future, swap them out, and return it.
thank you fuzz for support that puts sirius' to shame.
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Old 01-01-2006, 06:51 PM   #6
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Not a problem.

Also check your plug. Make sure that it is a 3.5mm Plug. I'm not that good on Conversions; and maybe 1/4in = 3.5mm, but just to be on the safe side go to RadioShack and spend the 4.99$ or whatever it is. You can always return it if it doesn't do anything.
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