chris in nh

for testing purposes i am running my laptop off it's battery. i have the Lilliput plugged into the cigarette lighter. the Lilliput is connected to the lappy via the VGA cable. the headphone out of the lappy is connected to the AUX IN (rca) of my car stereo. i get audible humming which gets a higher pitch as i rev higher. but when i unplug the Lilliput and just listen to an mp3, i don't hear the humming...

eventually i'd like to power my whole setup from an Opus. i have an email in to them right now to see if i can do it. haven't heard back yet. i don't know if this will solve my problem or not, but the other Opus features would be useful regardless.

i read the 'ground loop' thread below. looks good. just wondering if anyone has any thoughts about possible (easy) fixes...

thanks!