Instruction: Answer the given question using the supporting document.

Input:
Question: Does this work for cars that have the antenna at the rear? I had a similar device that didn't work for me because of that
Document: Due to the issues with a pure Android device, and it being advertised for iPod and Android specificly, I'm taking a star off.Another Update: Turns out the buttons work for the last media app that you run, that is still running. As long as the player is active in memory it works just fine. I've been swapping it between two cars fairly frequently and it's holding up very well.
If you are using the FM Transmitter, you may have problems if you have a rear-mounted car antenna. If you are looking for a good hands-free calling unit, your performance will depend on the location of your car accessory power port.
I haven't even used all of the features of this thing, and I love it. The device plugs into my car's 12v power socket and manages to flex into the perfect position. Both of my cars have slightly different socket placement, but the flexibility of this product allows for me to position it exactly where I like. Here are some of the features which I have found to be noteworthy:There is a very convenient (and inconvenient) power button located at the tip of the power supply.
Bloomberg and BBC). In the future this is how we'll all get content in our cars. But whereas car makers are only starting to catch up to this reality with recent models, this cheap little device gives this future to you in any car with an FM radio for less than a hundred bucks.The one way in which this falls short of a factory installation is in microphone quality.
This works as advertised, the Bluetooth works well with my iPhone 4, the FM transmitter also works well as long as the station used is not close to any other stations in the area. The only thing I didn't like was the app, it sometimes does not stream well (inconsistent) but other apps do work well this device.
We actually did get this device to work but the process was rather painful. The box and the book only mention iPhone and iPod so for awhile I thought this was impossible to use with a Smart Phone. Thankfully some helpful Amazon reviewers cleared that up for us and our Sprint Samsung Smart Phone does work with this product. Our first trials had a lot of static but we finally fine tuned it enough to get some decent sound.
Did not work on galaxy II phone a waste of money dont waste your time on device, it work with apple device not with android devive.
If no music app is running, it will auto-start the custom Livio app.I have never cared much for FM transmitters, as I hate the background static and loss of fidelity over hard-wired connections. Unfortunately, this is still a necessary evil for me because my cars do not have aux-in connections nor functional cassette decks. I find this FM transmitter works better with front-mounted antennas, and the instruction manual said as much.
I've tried similar devices before. They may cost less, but this one is a step up. It's easy to set up, connects to my iPhone quickly and reliably, and sounds fine IF you can find a "clean" unused station. I live in a Boston suburb, and the FM dial is very, very crowded - so virtually every number on the dial has some static.
Works great makes driving and using the mobile way safer. Would suggest it as a cheap way to upgrade older cars without bluetooth capabilities. Works better than all other fm modulators I've tried.
Answer: I'm mixed about this answer. I think it may depend on the actual car because I have had this in a few different cars with antennas in front and rear and different results. I know this answer doesn't help but I will say this is one of the better quality products I've tried. If you car has an aux input this device has and output or if your has a tape player it will work with one of those adapters. Good luck and sorry for the vague answer.