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I'm installing my new H/U tomorrow and just want to make sure that it's the negative terminal that you disconnect from the battery, I've heard ppl say different things on which wire to disconnect and I don't want to fry anything?

 
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RTFM! Disconnect the negative lead first. Then the positive. When re-connecting do the reverse. Connect the positive to the battery first. Then connect the negative to the battery last. Although I guess only disconnecting the negative lead is allright.

 
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its good to be safe but even if you dont disconnect, whatever no big deal

 
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I think about 5 members now blew their dash fuses and fried some panels..it is a big deal..but you only have to disconnect the black terminal

 
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yeah, just remove it, then i put my hu in, i didn't take out anything and i touche a wite to some metal and i blew a fuse. it took a while to find the fuse :-/

 
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I did not remove my negative terminal from the battery and I blew the "Backup" fuse in the fusebox under the hood. Best to remove it.

Now you know, and knowing is half the battle.