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iSimple IS31 Antenna Bypass FM Modulator for Factory or Aftermarket Car Radios

by iSimple
| 18 answered questions

List Price: $44.95
Price: $25.46 & FREE Shipping on orders over $35. Details
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  • Universal aux audio input for all FM radios
  • Compatible with any factory or aftermarket FM Radio
  • Play almost any portable device directly through your radio
  • Just tune your FM Station to the RadioMod channel for clear, clean audio
  • Audio connections and docking cables sold separately
See more product details
69 new 3 used from $20.36

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Frequently Bought Together

iSimple IS31 Antenna Bypass FM Modulator for Factory or Aftermarket Car Radios + Belkin Audio Y Cable Splitter 1-Mini Plug, 2-RCA Plugs (6 feet)
Price for both: $29.95

Buy the selected items together

Product Information

Technical Details
Item Weight9.6 ounces
Product Dimensions7 x 5.6 x 1.9 inches
Item model numberIS31
WarrantyONE YEAR
Weight9.60 Ounces
  
Additional Information
ASINB002U5XPBE
Shipping Weight1 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableMay 15, 2009
  
Warranty & Support
Warranty, Parts: Parts
Feedback
 


Product Description

Antenna Bypass FM Modulator

Customer Questions & Answers

Customer Reviews

This was easy to install and works great!
PilotPeat
After figuring out how to take my dash apart the install was very simple.
rpd8228
Much better sound than through an "FM transmitter".
James Gittelson

Most Helpful Customer Reviews

56 of 57 people found the following review helpful By Jeff W on March 14, 2012
Verified Purchase
I've had this item installed in my wife's car for over a week now, and we're getting so much use out of it I've already ordered a second for my vehicle. That's how highly we think of it.

We both own GM vehicles (hers: 2007 Chevy Malibu Maxx, his: 2004 Chevy Trailblazer) and neither stock radio had an aux-in port for our Apple products (iPad, Nano, or iPod), our daughter's DVD player or PS3, or my Samsung Galaxy S II. We travel quite a bit by car, and we enjoy sharing the entertainment instead of having everyone put on earphones while the driver gets control of the radio by default. We had tried the cheaper FM transmitter, which had mixed results on the Trailblazer. All brands (and we tried 3 different ones) were all a miserable failure on the Malibu Maxx due to the fact that the antenna is located at the rear of the vehicle. Since FM transmitters have a short transmission radius, the antenna was always too far away to be effective. We also tried the Dynex cassette adapter with the Trailblazer, but the audio was murky and muffled.

We don't like removing perfectly good stock radios from our vehicles, so after researching other alternatives on how to integrate our various audio devices, I decided to give the modulator a try. I'm a fairly handy guy, and while I had never gotten too involved with any of my vehicles' wiring in the past, this seemed like a relatively straightforward task. I was pretty accurate. The installation took about 2 hours total on the Malibu, and I'm sure it will go faster with the Trailblazer now that I'm familiar with it.

A few things you need to know:
1) Know how to remove the trim from your vehicle to successfully remove/access your radio. I did a Google search and found the exact walk-through I needed.
Read more ›
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11 of 12 people found the following review helpful By Michael Kesow on June 30, 2012
Verified Purchase
I bought a brand new Suzuki Kizashi and much to my dismay it does not contain an auxiliary input. WHY!? My initial solution was to buy an FM transmitter at Best Buy. After about 5 minutes of usage I knew I'd need a better solution. It reduced the volume by about 30% and constantly had some level of static.

My first FM modulator was the Scosche FMMOD01. I hooked it up and there was constant static at all volumes. I tried two different 12v sources and two different ground locations but the static wouldn't go away. Maybe I got a bad one. But I decided to try something different.

Today my iSimple IS31 came in the mail and I just installed it a short while ago. Now THIS is what I was looking for! I hooked it up to the same power/ground locations as before and am receiving all but zero static. There is a small amount detectable when you have the volume cranked with the MP3 player off. But that is beyond negligible. The volume gets nice and loud and there is no loss in sound quality.

One thing I did which I think makes things a little easier. There are two 12v sources in the wiring harness for the radio, a constant and a switched. The switched only delivers power when the key is turned over. So I hooked up the 12v wire to the switched wire and eliminated the on/off switch that comes with the iSimple (just cut the plug and solder the two wires together)
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7 of 8 people found the following review helpful By heinamj on September 30, 2011
Verified Purchase
Just finished installing in my Mazda Protege 5, no problems ... just find your power and ground wires to/from the radio and splice it in. No adapter needed for antenna on mine.

Sound is good and clear from my Blackberry. I like Classical so needed something without all of the background noise of an FM transmitter.
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6 of 7 people found the following review helpful By Jason on February 6, 2012
Verified Purchase
I have only had this installed for 2 days..

So far so good. I am using it in a 2004 Boxster S with stock CDR-23 radio. All in it took 3-4 hours to install myself. I went VERY slowly and even cleaned behind panels as I went. That also includes mounting of the switches near the radio.

If you have a European car you may want to check what antenna plug you have on your radio before you place you order so you can include an adapter if needed. My car needed Metra EU10 and EU20 adapters.

While being shipped it is a good time to research where you will source your switched power and ground. I used wire taps that you can get from any electrical or auto parts retailer.

Note: the on/off switch is not lit.

I am pretty to very happy with this. If it holds up it was a great purchase. That said there are a couple of things I would like to be different:

1. I dislike having to use an on/off switch. It would be great if this could somehow be signal sensing. I would pay more.
2. In between songs from my MP3 player there is static that rises in volume until the next song starts. This may have nothing to do with this item and be my radio cranking up the gain trying to find some signal. I don't know, but it is annoying. It is also the only time I can hear any alternator whine - and it is very faint. Even with these issues that may have nothing to do with this item, I would buy this item again.
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8 of 10 people found the following review helpful By mbermonte on January 25, 2012
Verified Purchase
Works great in conjunction with PAC IS335 3.5 Audio Input.
I've installed the kit on my Honda Civic and looks great.
Easy to install.
I had to adapt a LED light to it to give me a feed back on either connected or not though. Should consider in the future to replace the ON/OFF switch with one with a status indication light.
Thanks!
PAC IS335 3.5 Audio Input
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