I have a '90 300 SE and I was wondering if someone could explain to me how to remove the area that houses the radio and ashtray. I have to be able to get behind the radio to run a cable to the area under the dash on the passenger side. Right now, I have an alpine radio and there is a sat tuner on the pass side under that flap that is attached to the dash. I think I need to rerun the cable and I can't figure out how to get in there. Pics would be helpful. Thanks in advance.