Yup, that was one of the issues I took mine in for, 2 months after I bought it, It would cut out and sometimes it would go from like level 8 and on its own just spike up to level 30(very annoying, but wakes you up), And of course since they couldn't duplicate it in the .5 miles they drove it, they did not fix it. However this is a common issue in my work cars(ford/crown vic), which is cuased by a loose wire connections inside the radio that cross and send the radio's volume controller into a fritz.