just wondering if anyone is using the P5000 in their mobile. I've had this antenna along with the magnet base for three years now and it is still rocking along like it was new. Just like my Gain Master base antenna, Sirio is a rock solid performer. I do have some slight noise issues in my mobile with static but it's not that big of an issue. The only real issue I have is on my radio, in the instruction manual it clearly states to ground the mounting bracket. I have tried this and it messes up the radio. I always wondered if it was because the antenna was magnet mounted? Thoughts or comments?