Excellent Service Manual and best price on the Internet. This Service Manual covers everything you could ever need including full circuit schematics, component layout diagrams, stripdown procedure and full parts list/breakdown. I needed this to carry out a modification to one of these headunits and this manual covered everything I needed. Fast delivery, processed within a few hours.
Text excerpt from page 13 (click to view)
4-3. TOD Cover
Loosen the six screws fastening the top cover. Carefully lift the top cover as shown in the direction of the arrow.
4-4. OPE Unit
Disconnect the harnesses from the Main PBA. Loosen the two screws fastening the Main PBA. Disconnect the harnesses from the LIU PBA. Remove the OPE unit from the base unit.