SuperNet33
Go Ninja,Go Ninja Go..
Premium
join:2002-10-08
Harwood Heights, IL
clubs: 
 ·AT&T CallVantage
 ·Comcast
| Car Audio issues, FM Static, HELP
Alright, So here is what is going on, 2 months ago my D3 started to get static on FM channels, So I thought it was the radio going bad ( it worked fine for 1 month, and factory radio never had a problem). So last week I had the F90BT installed and still had static issues on FM, But another thing I noticed was the MSN Direct Signal almost NEVER has signal, some times it does for about a min and goes away, but I am thinking that is due to the fact there is static on my FM channels....
So my installer is trying to blame it on the grounding in my car, but I don't think that is the case because he used an external antenna and same thing happens.. and also when he put his hand by some wires behind the radio and messed around, he got signal for like 4-5 min.
But what I don't understand is 1 day it just started to get static on the line..
I am in really disparate need of some help.
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Jahntassa
What, I can have feathers
join:2006-04-14
Conyers, GA | You may try asking over at avic411.com.
It does sound like it's a problem with your car, if you tried two different units and they both had the same problem.
Though i've been reading the F series has its own (long) set of issues. |
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SuperNet33
Go Ninja,Go Ninja Go..
Premium
join:2002-10-08
Harwood Heights, IL
clubs: | reply to SuperNet33
Ok update,
Factory radio is back in, everything was fine for about 2 days but now the static is back, any ideas? |
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thejoker989
join:2004-01-17 | reply to SuperNet33
Is your radio antenna sticking out of your car or built into one of the windows? |
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SuperNet33
Go Ninja,Go Ninja Go..
Premium
join:2002-10-08
Harwood Heights, IL
clubs:
·AT&T CallVantage
·Comcast
| said by thejoker989  :Is your radio antenna sticking out of your car or built into one of the windows? built into the window
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HEDP
join:2008-04-27
Miami, FL | If their are any cracks between the strips that could be your problem. |
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Mchart
Tech Control
join:2004-01-21
Gurnee, IL
·RoadRunner Cable
 ·AT&T Yahoo
| reply to SuperNet33
An issue with the battery/alt. Clean power is not being provided and that noise becomes apparent over the radio. When you acclerate does the frequency (time-span) of the noise increase? If so, definite alternator issue.
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thejoker989
join:2004-01-17 | reply to SuperNet33
Most antennas built in the glass need a source of power and typically this power is sent from the radio. Make sure that whoever is doing the install is aware of this and gives that wire power... |
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wenter99
HardRock Houdini
Premium
join:2003-12-09
Albuquerque, NM
·Comcast
| said by thejoker989 :Most antennas built in the glass need a source of power and typically this power is sent from the radio.... Are you sure about that? I've seen a very few aftermarket rod antenns with a built in pre-amp that required power. But I've never never heard of a factory antenna built into the window glass that required power... |
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thejoker989
join:2004-01-17
| Yes I'm sure.
Heres the wiring on an 08 Camry as an example:
»www.the12volt.com/installbay/for···ID~99342
Another
»www.the12volt.com/installbay/for···D~103499 |
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wenter99
HardRock Houdini
Premium
join:2003-12-09
Albuquerque, NM
·Comcast
edit:
July 7th, @05:00PM
| Unless I'm missing something, the references to "Power Antenna" in those descriptions is refering to a powered telescoping antenna mast. A motorized antenna mast that raises and lowers itself when the radio is powered on/off?
Terry
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
edit:
July 7th, @05:53PM
| reply to thejoker989
said by thejoker989 :Most antennas built in the glass need a source of power and typically this power is sent from the radio. That is not accurate. The majority of embedded in glass antenna are not powered and do not require power. If you were to add power it would likely screw up a few things.
There is a difference when an embedded antenna has an external antenna amplifier that is located near the wiring that exits the glass, but that is not the normal setup. The Factory harness at the Dash will have the properly colored dark blue wire when power is needed for a externally amplified glass antenna. A power amplifier for the antenna is not a powered mast antenna.
»www.toyotanation.com/forum/showt···t=198182
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thejoker989
join:2004-01-17
edit:
July 7th, @10:02PM
| reply to wenter99
You'd be crazy to think a 2008 Camry has a power telescoping antenna.
Dr. Olds it sounds like you knows what your talking about, but from experience I can say I have put a radio in without supplying power to the power antenna wire (the solid blue wire for the aftermarket wiring harness but almost never that color on the vehicle side) and the reception suffered, afterwards supplying power to the appropriate wire cleared it up.
Also how can you explain the power antenna wire located behind the radio of cars that have a glass mount antenna?
I've seen it and experienced it in plenty of cars other than newer Camry's... |
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3SGTE
ST215W
Premium,MVM
join:2000-11-23
there
clubs: | It supplies the power the antenna amplifier needs to operate?
(I haven't confirmed this via a wiring diagram) |
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wenter99
HardRock Houdini
Premium
join:2003-12-09
Albuquerque, NM
·Comcast
edit:
July 8th, @12:44PM
| reply to thejoker989
said by thejoker989 :You'd be crazy to think a 2008 Camry has a power telescoping antenna.... 'Most antennas built in the glass need a source of power and typically this power is sent from the radio. Make sure that whoever is doing the install is aware of this and gives that wire power'... "Most antennas" built into the glass do not need a source of power. They would only require power if they are equipped with an antenna amplifier, which MOST aren't.
said by thejoker989 :Also how can you explain the power antenna wire located behind the radio of cars that have a glass mount antenna? Just like I'd explain removeable dash plates and wire connectors included from the factory in a brand new stripped down car without a clock or A/C or in-dash radio... dealer installed options!
If the car has a "Power Antenna" the wire is for activating the relay that raises and lowers the antenna when the radio is powered on/off. If the vehicle doesn't have a "Power Antenna" the wire would not be used.
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"Sometimes all you can do is just hunker down and take it, like a jackass caught out in a hail storm". LBJ |
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mattmag
Premium,ExMod 2000-03
join:2000-04-09
NW Illinois
clubs:
·Mediacom
| reply to thejoker989
said by thejoker989 :Most antennas built in the glass need a source of power and typically this power is sent from the radio. No, they do not.
Dr. Olds has it correct; some vehicles have a pre-amp that is in the coax lead from the wire-grid antenna, and it also serves as a filter to remove associated noise that can be injected from the rear window defroster grid. The reception *does* improve with this device powered, but it is not because the antenna-grid itself requires power. The radio reception is purely passive.
I can see where you are confused about "power antenna" connections, but a grid array is not a power antenna. |
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Doctor Olds
I Need A Remedy For What's Ailing Me.
Premium,VIP
join:2001-04-19
1970 442 W30
clubs:
| reply to thejoker989
said by thejoker989 :Dr. Olds it sounds like you knows what your talking about, but from experience I can say I have put a radio in without supplying power to the power antenna wire (the solid blue wire for the aftermarket wiring harness but almost never that color on the vehicle side) and the reception suffered, afterwards supplying power to the appropriate wire cleared it up. You seem to be mixing the terminology together at times. The manufacturer can choose what they want, but we can't. 
• Power Antenna
• Antenna Amplifier (powered)
1) Rear window antenna W/o diversity
Electrical , Antenna ,Cable ,Rear window antenna
»www.trademotion.com/partlocator/···alogid=2
2) Wire
Electrical , Antenna ,Wire
»www.trademotion.com/partlocator/···alogid=2
Earlier Camry had the old style power mast antennas, while later Camry are in the glass with a Power Amplifier for the embedded in-glass antenna.
Regards,
Doctor Olds
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What’s the point of owning a supercar if you can’t scare yourself stupid from time to time? |
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THUD300
Part Of A Complete Breakfast
Premium
join:2002-06-07
Decatur, IL
| reply to SuperNet33
I'm not clear on exactly what make, year, model car we are talking about...
Some GM cars have an "antenna module" which, on signal from the radio, connect or disconnect the RF signal from the antenna grid to the radio. It's not a signal amplifier, but only an electronic switch. This cuts off the RF signal for XM radio or Onstar operation.
I do know of one car that had serious reception problems that was fixed by replacement of this module.
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thejoker989
join:2004-01-17
moderated:
July 10th, @09:16AM
| reply to wenter99
The confusion I had was that most glass mounted antennas are amplified, not that an antenna built into the glass needed power supplied to it.
Thank you all for the clarification, I guess the incidents I had where supplying power to the antenna wire and noticing better recpetion was either a placebo effect or happened to be in one of those few cars with an amplified antenna (Toyota Camry). |
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mattmag
Premium,ExMod 2000-03
join:2000-04-09
NW Illinois
clubs:
·Mediacom
| said by thejoker989 :Thank you all for the clarification, I guess the incidents I had where supplying power to the antenna wire and noticing better recpetion was either a placebo effect or happened to be in one of those few cars with an amplified antenna (Toyota Camry). Actually, I think the use of pre-amps and the like is gaining in popularity. With all the electronics on-board these days they need all the help they can get. And, there is still a rather large base that still likes to listen to AM! |
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