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So today while on a road trip, my carputer suddenly shut down and everything went dead, including my in dash clock. Simple enough - it's a fuse, right?

Sure enough, a 15a fuse in my fuse box had blown - this is the one that controls the stereo and goes to my carputer. It is a mac mini being run off of a Carnetix p1900 power supply.

I replaced the fuse, only to have it blow again after about 30 seconds. I tried several different things to try to narrow down the problem and burned through about 4 fuses before just scratching my head and giving up.

The fuses don't blow immediately, but always within the first 30 seconds. Does anyone have any common troubleshooting ideas or tips to help me figure out what's wrong?

MP3Car.com