I just purchased a 92 525i that came with the factory clock/date/temp digital display. I'd like to install the OBC. I've purchased a used OBC. In preparing for the installation, I've done the following: removed the radio, removed the clock. I can see that the clock and the OBC are a different size, so I am required to change the entire faceplate. I've looked through the Bentley manual, but it's not very descriptive on R/R the faceplate. Does anyone have first hand experience on doing this??

Thanks!!