Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Will this fit in a cup holder that is only large enough to handle a standard soda can (6.67cm)?
Document: The attachments that came with the cup would not fit my 8gig Ipod.It came with five cradles and none fit
Works great and best of all it fits right in the cup holder... ipod is secure! buy it.... worth the money
If I pull this item out of the front cup holder and move it to the one further back (18+ inches away) it does get some hissing in the signal. I am assuming the front cup holder is closer to the antenna and that is what makes the real difference. Anyway wanted folks to know that placement does matter and results will vary based just on that.Hope that helps someone.
Pros - good looking, fits in cup-holder, strong FM signal - and ability to tune below 88.1 so you can get no-broadcast interference anywhere.Cons - iPhone 4 or 4s won't stay connected while the car is moving. The slightest bump, turn, etc that makes the phone move ever so imperceptibly - and you will lose the critical contact between the phone and the charging connector and disrupt playback.
I was hoping this would work with my iPhone, but as I dock the phone and begin to drive, my phone somehow disconnects and will not play. I have to dive with my finger on the phone to hold it down in order to have it function properly. I've tried all of the adapters that came with this device and none of them fit the iPhone properly. This is not worth it.
Seriously this is the best FM Tuner out there! and i dont write reviews normally at allI chose rating of 5 because:Pros:1. The frequency is amazing, i live in the mountains and i rarely get good service on my car radio, with this tuner i dont have to worry about that anymore. I chose the first frequency 88.3 and i never had to change it!2. The device plugged in stays in the holder very firmly and does not move around3.
The wire quality if great, they are thick and solid (i tried at least 7 different fm tuners and they all suck)5. NOW YOU CAN FOCUS ON THE ROAD, instead of trying to make your tuner work while driving !6. Able to use bluetooth and hands freeCons:1. For some reason iPhone4s was not able to charge and play at the same time, it worked perfect with ipod
this is a good alternative to other FM transmitters. It can also charge while transmitting. Sound quality aint the best, but it does allow to find the right channel throughout all the FM channels in a vehicle radio.
it was exactly like the one I replaced at less than half the price. no buzz,  holds stations well. very happy. now if it was only likes to stream data on my Damn phone!
With the fitter in place, the docking connection was not secure and every time I went over a bump the iPod would disconnect. None of the four fitters provided fits my iPod Touch exactly, either.So now if I want to use my iPod with this device, I just plug it in like I would my phone--charge it via USB and listen to it via 3.5mm cable.
Answer: yes, I have an f450  truck with standard cup holders.  the four " legs"  on bottom of service are springloaded  with rubber teeth that squeeze in to fit. I am sure it will fit in your car