Bought a DVR007 from estore009 on eBay for $60. It has all of the identifiers of a genuine DVR007. The device radiates *so much* RF that it knocks the FM radio *and* the Garmin GPS receiver off the air. I corresponded with the seller and he/she sent a replacement power supply, supposedly improved. It behaves identically. No FM radio, no GPS reception. The RF seems to be coming from the DVR device itself, not from the transformer in the plug end of the power adapter. Also, the internal battery does not work at all. After leaving it plugged in for any length of time, the device shuts down as soon as power is removed from the 12V power adapter and the DVR007 won't power up from the internal battery. Although the DVR seems to work as expected as a camera and makes pretty good video recordings, it's unusable in my van as it interferes with my GPS and my FM radio. As far as I'm concerned, this is a complete piece of junk.