Sirius FM Modulator Relay (FMDA25C)

  • Model Number: FMDA25C
  • WebID: 10093812
(18 ratings)
Sirius FM Modulator Relay (FMDA25C)



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Compatible with all Sirius Plug & Play Receivers! Reduce interference due to congested local radio conditions. Connects the FM Modulated Output from your Sirius Plug & Play Receiver directly to your radio via its antenna jack. *May require additional antenna adapters in some vehicles. Designed specifically for in-car Sirius Satellite Radio Plug & Play receivers.

Manufacturer's Warranty

  • Parts - 1 Year(s)
  • Labour - 1 Year(s)

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6 Customer Reviews for Sirius FM Modulator Relay (FMDA25C)

Average Overall rating

5.0 / 5
Based on 18 ratings
  • 5 Stars
  • 4 Stars
  • 3 Stars
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  • 1 Star

Positive vs. Critical Reviews

100% Positive

18 Reviews

0% Critical

0 Reviews

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  • Clayton
  • from Kingston, ON
  • Sep 20, 2013

Great buy

As others have already stated, this is a must if you do not have an aux input on radio. eliminates all static experienced with the FM antenna only

  • Ron
  • from Calgary
  • Oct 22, 2010

Sirius FM Modulator Relay

The Sirius FM Modulator Relay should not be an optional add-on, it should come with every Sirius unit. Without it, you get all sorts of static and distortions. I'd say my music went from 4/10 to 8/10 with this modulator. You don't realize how bad the fm transmitter is until you get this. The aux input would be a 10/10 for sound quality.

  • Dino
  • from Ontario
  • Aug 16, 2010

works great

This is a must if you have no input jack on your radio. Only thing is the adapters cost more than the unit itself...wasn't really happy about that.

  • Rob O
  • from Mississauga, ON
  • Jul 03, 2010

Sirius Modulator

I should have bought this long ago. It totally eliminates the static I was getting just using the built in wireless modulator. Even though it is for Sirius it works fine for XM as well as long as your radio or docking station has an FM OUT jack. Easy to install and the car install boys at Future Shop have all the adapter cables you need. This thing is great !!

  • Mike
  • from Alberta
  • Aug 07, 2008

Must have....

Without this FM modulator your Sirius is passable,with this kit your Sirius is outstanding.The music is crisp and clear and I don't know how you would buy Sirius without a FM modulator.Worth the investment but installing it is another matter,you might need adapters to make it work with your radio.