You could, but it's not recommended. The vehicle does nto provide regulated 12v power.If I remove my existing head end unit, can that be used to power my Lilliput?
I see the white connector on rear right of the VoomPC plug into?
Some people have done this and it works just fine. Others have damaged their LCDs. It will definitely shorten the life of your Lilliput screen as well as void the warranty.