Bill
We purchased the LG 32LV3400 on Amazon for around $400.00. I just checked amazon and they still have some. Check the dimension of the LG 32LV3400 as I think the 2500 and 3500 have the same dimensions. The important part is the outside dimension of the 32LV3400 fits perfectly into the frame, if I remember correctly I trimmed some of the LG back cover plastic on the connector side so I would have more space to connect HDMI cables. The metal brackets which hold the Sharp TV onto the frame have to be re-shaped to accommodate the LG TV.
For the speakers, we removed the back cover of the Sharp, about 15 screws, and removed the left and right speaker control board, it's real simple by removing 1 screw on the control board and then opened up two holes on the back of the LG near each speaker and disconnected the LG speaker wires and connected them to the left and right control boards. We then mounted the control boards on the outside of the rear plastic cover on the LG. Simply plug in the RCA plugs and everything works great. In fact the sound is much brighter and louder than with the sharp TV.
BY removing the Xantrex remote cover and the slide out switch cover we were able to pass 2 HDMI, composite, AV and optical cables to the component cabinet above the passenger seat. We replaced the Sharp control system with a Blue Ray DVR in its space. The Directv box send it's signal to the coax cable directly to the TV. The Bose DVD is no longer connected, as well as the old VCR, because we didn't need it with the Blue Ray. The Bose sound system still works because the audio out goes from the Directv to the Bose system.
