Hi ! I'm ready to do an installation in my Smart ForTwo car. I have a M400 touchscreen wich is powered with a cigarette-lighter cord and a Sony Vaio TR2MP wich is powered with the original 220V power adapter.
I want to use a 300W power inverter for my installation. What should I do :
- Use a 1 male cigarette-lighter to 2 female c-l adapter and put my power inverter in one hole and the screen plug in the other hole ?
- Or is it possible to put both devices in the power-inverter plug ?
-Or (and after this I stop

) Is it better to buy a dc adapter with a cigarette-lighter especially made for my Vaio (or compatible) and plug both devices into the cigarette-lighter plug of my car ?
Thanks for enlightening me, I'm a little lost here and I don't want to set my car and my devices on fire...