I have a 1999 MBZ ml320. I'm having trouble removing the car stereo on one side ( the left side ) which is stuck. On the other side it slide out with no problem. I do have special tool to remove BOSE car stereo. I don't know what to do and I'm afraid to pull too hard other wise I'll damaged the plastic face plate. What should I do to release the stuck part? Thank you for info.