this is the charger I use in my car. I love it! One for me, and one for shotgun.
It's $16 right now, which is a steal, but if you look around, you might find a discount code which will make it even cheaper.
I got this after some contemplation, Tronsmart, has exactly what you are looking for.
I can't be 100% sure it's the same thing, but this is very close to what I bought from the shop (Malaysia).