I was so unhappy with the performance of 5.6 and 7" screens that were available at a their REDICULOUS price(s)... that I just went with a Shuttle and 15" LCD Samsung in my van. I just don't get the price of those small POS monitors. Not when you can get a 15" plus for far less than most of them.
Now we can watch DVD's and play all the games needed on long trips. And having the bigger screen... is great. I can just grab it up out of the van and plug it into a phone line for internet access while on the road also.
I went all wireless. Wireless Remote for the DVD's, wireless mini keyboard/mouse all in one, wireless gamepad, wireless Dolby Digital headsets. No wires, and amazing performance. Saved a cr@p load compared to what they charge at the mobile audio/video stores. $1000 for a damn DVD changer... I mean c'mon.
Anyway.... be careful when it comes to these small monitors. Some really look like cr@p.
JMO.