I am considering Roberts Mobile Electronics or Ovation Audio-Video, however I would appreciate suggestions from anyone that has any first hand experience with my area's installers. I have a 93 Toyota Land Cruiser (9 speakers), and plan to have the double DIN factory unit replaced with the mk2a, external amp(s) and replace some or all speakers. I'd like to keep the amp(s) out of sight and speakers in factory holes. What should I expect to pay for a quality installation of this sort? Any and all comments are welcome.