The here existing, mostly positive reviews, I agree on the whole. I have purchased the product for a camper on a Fiat Ducato base. The installation was smooth, the radio reception is good (passive antenna) and the image reproduction is more likely to be described as very good. The service is good solved, random playback of CD, SD card or USB flash drive is possible and it works well. So why only 3 stars? There are two reasons for this: 1) This device can not be used when the ignition is off. Although continuous positive at present provided input, the ignition turned off, only the function to remove the display can be triggered. Other functions such as the usual switching for a limited period (usually 1 hour) are not supported. Since the Ducato in the first key notch ignition incl. Glow plug heating, ventilation, lighting, etc. is turned on, must be switched to the Zündspannungseingand the JVC on an additional switch permanent Plus, you want to operate the device with the engine off. Very annoying, because this mode is the rule rather than the exception in a camper. Especially since this issue would probably be resolved by a firmware update. 2) In connection with my Samsung Galaxy S i9000 (SGS), access to the phone book of SGS by BT does not work, although the SGS PBAP is compatible. Although individual entries can be manually transferred to the JVC, the automatic access when logging was even after several attempts pairing (as proposed by the support) is not possible. The JVC support is more likely to be described as weak. The first request was obviously not read correctly, because the answers are not really related to the questions. After further inquiry it was then the statement "compatibility with the Samsung Galaxy S i9000 can not be assured". On the next line, a link was followed to a JVC table with compatible mobile phones in which the SGS i9000 compatible than full, with the support of all functions including the phone book access is done -. Ahhh yes! Ever seems the interest of JVC to fix or maintain the current firmware to be rather low These kinds of problems. The last firmware update (version 1.05) is already back more than a year.