just reading through this and wanted to comment. You can use an inverter without a problem. All you've got to do is put an interupt switch along the negative side of the circuit from your battery. You could put the switch some place inconspicuous in the front, and then just flip it whenever you leave your car. That way you can use any normal AC computer component without having to find controllers for every single one, or wiring power from tail lights, cig lighters, ignition power etc. It might make your world just a little easier, possibly less expensive, and allow for more deviation on system components. Just a thought.
Well I am in a tough position.. I have incurred some unexpected bills and the project is on hold..
I have the computer and screen completely ready.. Just no opus or inverter.
I really would love to continue this project but I don't know a cheap way to power it for the time being, without setting my car on fire
That's too bad. Well here's some inverters if you'd like to look. They are good ones. Used my Maxx for like 2 years without a single problem. Not even a burned out fuse. Use it everyday. Good and cheap too.
Hmm.. Thanks for the advice -- I could afford that.. Just dont plug inverter until car is started and happy, i guess
edit: or would it completely be necessary to wire inverter to battery
Just read through this ageing post and wondered if you continued your project and if so how you got on in the end?
I have just started mine (see sig) and have gone for the invertor method, as I was also worried about battery drain. To combat having to unplug the invertor every time you leave the car, why not extend the exisitng switch in the invertor to the front of the car? This would also eliminate the need for any relays or other electrical equipment/knowledge
With regards to the discussion about plugging the invertor directly to the battery, personally I don't forsea a problem with using the cig lighter plug that comes with the invertor, after all it was designed to use that 12v source? (please feel free to correct me if i'm wrong )
Anyhow, if you are still looking for an invertor try Maplin, I picked up a 150w DC-AC for £19.99 on special offer, bargain
If you have scrapped this project, sorryto hear that and hope you find time and money to start it up again soon
My '84 Austin Mini Carputer Project : http://www.mp3car.com/vbulletin/worklogs/53221-1984-austin-mini-carputer-project.html#post541067