TRYING to work with a budget of £0 is difficult, I've spent about £18 so far :')

Anyway, I found two car rearview screens on Amazon which I think would be interesting to use with the Pi, using the yellow RCA lead.

However, I'm not sure what kind of quality I can expect from this, plus, I don't actually intend to use the Pi in a car, so I'm assuming that the power to the screens will be provided via cigarette lighter slot.. but I'm not sure.

Any advice please?

Here are the models:

http://www.amazon.co.uk/HDE%C2%AE-3-5-T ... 1&sr=1-134

http://www.amazon.co.uk/Engiveaway%C2%A ... 2&sr=1-357