The KD-PDR41 offers a cheap solution for you to upgrade maybe standard factory stereo. It offers you the option to connect an Ipod, which is what I mainly use mine for. I've also got an amp connected which is a simple phono connection. The headset also allows you to playback MP3 cd's, audio jack inpit and USB input, although the USB is pretty slow to initialise.
Using the headset is pretty easy with a quick flick through the manual, the Ipod is easy to navigate round all the tracks, selecting play-lists etc. There is a lot of settings to adjust so a more detailed read of the manual might be required if your want to be messing around and tweaking.
Setting the head unit it up for pretty straightforward but a little expensive (for me anyway). The unit was replacing a double deck factory standard headunit, from a Vaxuhall estate. I had to buy to ISO adaptors and an aerial adaptor for the radio.
For the price, the sound quality is pretty impressive and a massive improvement on the factory standard head set!
For the price i believe that this stereo represents quite good value for money, obviosly depending on what you are looking for. This offers a cheap and cheerful way of upgrading your existing stereo to be compatable with mp3's which can be played on either of its 3 inputs. The aux in is probably the best option as it offers a direct connection and will play in real time from your mp3 player, whereas although the usb function is a good option to have, if you have a lot of tracks loaded on the device, it can take a while to read them all, which will happen every time you turn your stereo on.
Jvc's are usually nice and simple to use and this one doesnt dissapoint, the preset buttons are large enough to touch without being obtrusive, and the scroller wheel allows for easy changes in the volume. Tuning the stations is also easy as it can be done either manually or through the RDS.