That opening is the AC end. To power that you need an AC source. In a car that means an inverter. To power an inverter on when the car starts you need some fancy wiring.
If you look at the dc end, you can find out the amperage and voltage it is outputing and buy a good DC-DC for it.
And as a side, did you shove that between your legs to take a picture with a horrible camera phone?! :tear:
Fusion Brain Version 6 Released!
1.9in x 2.9in -- 47mm x 73mm
30 Digital Outputs -- Directly drive a relay
15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
Buy now in the MP3Car.com Store