I have a Nissan note 2010. And since getting this from new whenever I go over a bump (not all bumps ) it makes a terrible ringing noise (radio set to AM) It's been in 3 times they say they couldn't replicate. I did my first emergency stop the other day and the ringing that came out of my radio was horrendous . Now out of warranty garage where I purchased from says tough out of guarantee. Anyone out there had the same fault?