bad BAD news..
I just got a new jvc kd-r900 HU (very nice btw) and I couldnt figure out why I couldnt get output from the sub. Turns out when the coil cooked, it took the amp down too. There arent any visual signs in the guts but db-r quote $150 :/ I dont really have the money for that right now either.
HU has 5v outs and dual USB //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif