I got the larger screen DVD headrests from
ebay (9" screens) for $450 including shipping. They left Hong Kong at 2PM HK time and were delivered the next day at 2PM my time. I was totally shocked at how quick, as I just paid for standard delivery.
I did not even need to fish the wires. The headrests just fit into place. I had to reach up and grab the wires. I ran then under the seat and put the bundle in front of the console shifter. The only thing I had to do is splice into the power. I really like them.
FYI, I got Black leather for my Grey interior. My wife really likes how they tie into the black on the trim panels. I was not going to risk having the colors slightly off.
FYI2 - the manuals are the worst chinese to english translation I have ever seen. It is Jay Leno headlines type funny. Just ignore them and use your own judgement.
Link to the monitors I got
eBay Motors: TWO 9" Headrest Pillow LCD Car Monitor w DVD Player T (item 290202927534 end time Feb-07-08 00:35:16 PST)