Thread: Power USB soundcard

I have a laptop with very bad sound quality. (I use the laptop to connect tot aux-in on my HU). So i want to upgrade my sound on the laptop and i think the best/most common option is to use an external usb soundcard.

Most usb soundcards need to use external power to operate. But how could i manage this. How can i be able to power the usb soundcard (using sigarette plug?). I am not really into car powering etc.
I use the sigaretteplug for powering my lilliput & laptop and this all goes well.

Thanks in advance