Digital Radio Central - Sponsored by TSS Radio
  DRC Home Page DRC Forums Contact Us  
SIRIUS Backstage Forum
  Sirius Satellite Radio XM Satellite Radio iTunes/iPod Slacker Pandora  
FAQ Members List Calendar Search Today's Posts Mark Forums Read  
Go Back   SIRIUS Backstage Forum > >
Visit Digital Radio Central


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.

Thread Tools Display Modes
Old 09-13-2007, 08:59 AM   #61
Top Dog Member
How the FM Direct Adapter (FM Modulator Relay) works
jwt873's Avatar
Join Date: Mar 11, 2004
Posts: 2,600
jwt873 has a spectacular aura aboutjwt873 has a spectacular aura aboutjwt873 has a spectacular aura about

Originally Posted by BLD View Post
So the problem seems to lie in the receiver itself, and not the dock or the fm direct adapter.. It seems as though no power is being sent to the adapter from the fm out jack..
That's kind of what I was thinking.... Do you have access to a voltmeter and a spare 3.5mm plug? .. If so, insert the plug in the FM OUT jack and measure the voltage at the pins. You should see about 5 volts appear there when the receiver is on. If not, then that is your problem.
jwt873 is offline  
Old 10-26-2007, 01:05 AM   #62
Channel Surfer
Join Date: Jan 23, 2006
Location: Northern IL
Posts: 68
renesisX is on a distinguished road
Send a message via AIM to renesisX Send a message via MSN to renesisX

I just picked up my adapter the other day and got it installed and setup and I am soooooo much happier now. I haven't been able to listen to my Stiletto in my car for over 2 months now, it's been sitting at home on the stereo being used via Wifi.

I have absolutely no static whatsoever. The only thing I have left is the crackling SSSSS sounds on some of the channel announcements. If anyone knows what I mean.
renesisX is offline  
Old 10-26-2007, 10:30 AM   #63
Sirius Star
How the FM Direct Adapter (FM Modulator Relay) works
Mkrucejr's Avatar
Join Date: Jan 19, 2007
Location: South Jersey
Posts: 2,296
Mkrucejr will become famous soon enoughMkrucejr will become famous soon enough

I have that.......Depending on your Head Unit.....Sounds like your "Highs" are high. I have mine set up that way...Some Lows....Some Mids..and High Highs (if that makes sense)

Sportster Replay
Pioneer Head Unit
Subscriber Since: October 19,2006
Mkrucejr is offline  
Old 10-31-2007, 01:11 PM   #64
Channel Surfer
Join Date: Jun 14, 2007
Posts: 31
Myass is on a distinguished road

Originally Posted by BLD View Post
Maybe I have myself to blame, but don't tell sirius that.. In an attempt to better my signal I use to attach the stripped end of an old sirius antenna in to my fm out jack.. This actually improved the signal by alot and I had recommended others do the same on this forum.. All though this helped my signal, I fear that I may have caused some sort of short in my fm out.. I understand this jack will send low voltage power to the fm direct adapter which in theory disconnects my terrestrial signal..

Does anyone think this is possible and its my fault its not working today?

So I called Sirius, and since the radio is under a year old they agreed to send me a new unit, Lets hope that does the trick..
You shorted the FM jack. The jack is meant to be used with a specific plug that has both positive and negative poles. Sticking bare wires in it creates a short.
Myass is offline  
Old 11-01-2007, 01:35 PM   #65
Just Tuned In
Join Date: Nov 01, 2007
Posts: 1
bigbill117 is on a distinguished road
Default wires and voltage

Does anyone know the wires and voltage for the fm direct relay. I have one of these installed in my car want to use it for my Zune as well and I have seen that the modulators for the zune can be opened and have an antenna wire soldered to the circuitboard to transmit the FM signal. but I would need to know how to get the relay to kick over to shut off the external car antenna.
bigbill117 is offline  
Old 01-02-2008, 12:43 PM   #66
Channel Surfer
Join Date: Nov 20, 2007
Posts: 48
hairmetal4ever is on a distinguished road

Originally Posted by sloth911 View Post
I got the FM Direct Adapter hooked up to my Starmate 4 and it works like a charm. I used to use a wired FM modulator to connect my iPod to my car radio the same way.

Is the plug the goes into the back my Starmate 4 Universal dock a "mini" stereo plug? Would I be able to hook up a mini splitter and feed both my iPod and Starmate 4 into the FM Direct Adapter?
I had mine (with the FM Direct adapter) on the same frequency (89.9) for the entire trip from Akron, OH to Laurel, Maryland and never heard a peep of static.
hairmetal4ever is offline  
Old 01-27-2008, 09:42 PM   #67
Just Tuned In
Join Date: Oct 30, 2005
Posts: 3
NegativeC is on a distinguished road
Default FM modulator not working

Thanks to this post! I installed one of these in my mother inlaws car and she said her AM radio wasn't working. I checked it out and things were acting a little funny (not like this post said it should) because both Sirius and FM were working at the same time but no AM. I pulled the unit, opened it up and did some investigating. I was totally confused at first because things were not laid out the way I'd thought they'd be and there was no way for the "FM Out" on the Sirius unit to trip the relay, ever. I hooked up 5V to where I thought it should go and traced it back to the antenna output. It turns out the two wires exiting the unit were installed backwards! I bought it off eBay for next to nothing so I wonder it that was the problem, or maybe it's a conspiricy to sell bad units by old fashioned radio . I resoldered the wires in the right place and BAM it worked great. You could now hear the relay click when the Sirius unit turned on and AM and FM worked when off. Here's a picture of the unit and the two wires I had to swap. In hind sight I should have just cut the cables outside the box and switched them that way but I wanted it to look as clean as possible. Well, I just thought I'd share my experience for anyone else with a bad unit.

Full Cubicle Effect,
Attached Images
File Type: jpg OCH_20080127_000.JPG (74.0 KB, 86 views)
NegativeC is offline  
Old 01-28-2008, 01:42 PM   #68
Just Tuned In
Join Date: Jan 28, 2008
Posts: 1
leskos01 is on a distinguished road
Default Did not work

I purchased a Stiletto and car dock. Installed it and had a hiss using all of the options, Sattelite,library etc...... I purchased the antenna adapter and it made absolutely no difference. 03 Ford Ranger, Factory Stereo
leskos01 is offline  
Old 02-11-2008, 09:39 AM   #69
Just Tuned In
Join Date: Feb 11, 2008
Posts: 1
larowe324 is on a distinguished road

I have a sportster 4 and ever since i installed the fm modulator relay my sirius player restarts every time i start my car. So i can't use my pause or rewind feature when i get back in my car. does anyone know how to stop this from happening.
larowe324 is offline  
Old 09-08-2008, 08:43 PM   #70
Channel Surfer
Join Date: Jan 09, 2007
Posts: 16
teitoku is on a distinguished road

I'm with bigbill117; can an already installed FM direct adapter be easily used (with some re-wiring of course) with your average 3.5mm equipped FM transmitter? I'm getting rid of my receiver but I'd love to keep the direct adapter in and use it with an mp3 player.
teitoku is offline  
Old 10-17-2008, 08:48 PM   #71
Just Tuned In
Join Date: Jan 02, 2008
Posts: 1
VinMan91 is on a distinguished road

I've installed the FM Modulator and I notice no difference. I then got another Modulator and still the same prob. I've checked the FM output and getting around 2.5 volts. I'm assuming that is not enough to get the Mod. to work. I know it needs 5. I'm thinking the dock is fried then?
VinMan91 is offline  
Old 10-20-2008, 10:48 PM   #72
Just Tuned In
Join Date: Sep 17, 2008
Posts: 1
va6pc is on a distinguished road

I found that it was a lot clearer but also a lot lower in volume. Did anyone else notice this? I find it better to just listen to my ipod fm transmitter. Any comments??????????
va6pc is offline  
Old 11-21-2008, 04:59 PM   #73
Just Tuned In
Join Date: Aug 07, 2008
Posts: 1
DOGMAN is on a distinguished road

Bringing this thread back to life. I am having same issues as everyone else. Stiletto 2 with dock and fm mod relay. Installed into a dodge ram truck. No AM, Regular FM loss of quality.....background hiss on Sirius. Yes Sirius is a lil better than using the fm transmitter....but not worth the money. Looks like Im taking dock and transmitter back to futuredump. Unless someone has some ideas. Maybe I should take apart like someone else here did.
DOGMAN is offline  

Go Back   SIRIUS Backstage Forum > >

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cassette Adapter vs. FM Modulator. And the winner is.... Seismo Install Garage & Help Desk 8 01-27-2008 09:53 PM
FM Direct Adapter vs. Chrysler Auxiliary Input Adapter pschmitt Install Garage & Help Desk 1 12-26-2006 01:07 PM
2002 Dodge Dakota Quad Cab - Stiletto fm direct adapter wizardsrevenge Install Garage & Help Desk 10 12-26-2006 09:00 AM
HELP....Setup FM direct adapter in '05 CIVIC tornado681 Install Garage & Help Desk 2 12-22-2006 06:48 AM
Terrible sound with Blitzsafe adapter installed Johnny Bax Install Garage & Help Desk 9 04-14-2005 03:07 PM

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 12:52 PM.
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO v2.0.39 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
All Content Copyright SIRIUS Backstage. All Rights Reserved. SIRIUS and registered trademarks are the property of SIRIUS Satellite Radio, Inc. The opinions posted on SIRIUS Backstage website and forums are those of the individual posters and/or this website and are not necessarily the opinions or positions of SIRIUS Satellite Radio, Inc.