Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Can anyone confirm that the depth is only 3.5 inches?  I only have 5 inches of depth to install.
Document: I got used to it, but it wasn't ideal.I would have given the unit 3 stars if it would have lasted more than 4 months.
iPhone works great with this item, using blue tooth. Did not need to buy extra stuff to install, and installation instructions were very clear
Other than that, it works well and the built in amp was powerful enough drive 4 x 6.5&#34; 2 way speakers. I like how this deck should have less things to break, time will tell.
Thank you E&B; Electronics. The Clarion radio arrived well packed and on time. The radio's USB, Bluetooth, Pandora integration and no CD, was everything I wanted in a replacement marine stereo. It was easy to install and works great.The next time I am in the market for additional electronics, E&B; Electronics will be my first choice.All the best,Ernie
First stereo that I needed to read the manual for but once you set it up and get used to it, it is a really nice stereo.I have not connected the mem to the battery directly and the unit held it's memory over night with the power completely off - can't confirm longer right now.
I haven't opened the box yet but the box is really cool. It's got white and blue colors. It's cardboard too.
Also with the usb cord coming out the back of the radio, I had to remove the cigarette lighter and stick the thing thru that hole.
The head unit performs as I had hoped. the remote is easy to use important since the radio is installed in the cabin of a 30 foot day cruiser. All the various modes work great particularly Pandora via Bluetooth.
I go through a stereo on my boat annually. I had started with the $500 Kenwood thinking the most expensive would be the most durable - nope. Then tried a few more discovering that no matter how much they &#34;waterproof&#34; the unit, the faceplate and cd opening is a huge weakness.
The single knob control is horrible,  very confusing and overly complicated. Unless you really are going to use all the features, dont buy this unit,  the 300 series is a much nicer unit. I need to use the instruction manual to change very basic settings
Answer: I installed this stereo in my boat. I know for a fact that it is much deeper than 3.5". I did not measure it but I can guarantee it is deeper than that. I think that they are referring to the height.