Audio Systems: Powered Subwoofer, radio compass, powered subwoofer

Question
I have the main power to the battery and the fuse is bigger.  I did not see any wire that was REM.  I'll have to take another look at the wires though.  I also read on one website that, for instance my GMC Jimmy has the little screen hanging from the roof of the car saying the temperature and the directiong I am going,  when the light goes on that, it could cause the fuse to blow.  Because that and the radio are not working.  Do you think this sounds like a possibly reason why the fuse is blowing?
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Followup To

Question -
I installed a Powered Subwoofer and after 2 weeks the radio/compass fuse keeps blowing everytime I put in a new fuse and turn on the car.  I ran the remote connection to the head unit and spliced it with a red wire (battery connection) I think.  Anyways, I was wondering what wire should I connect the remote connection from the powered subwoofer to on the head unit.  Thre wasn't a specific one for amp or powered sub.  Any advice would be great.  Thanks.

Answer -
well, a powered sub needs 3 power connections,  a ground (heavy wire attached to the frame of the car) a constant sorce of power (heavy wire attached directly to the car's battery) and a trigger wire (thiner wire that simply signals the sub to turn on.  it sounds to me like you have the main power wire and trigger wire switched so that the sub is pulling its power from that red wire on the cd player.  If the cd player is after market there should be a blue wire usually labeled "rem" or "remote".  this is what you should use to trigger the sub.  you need to figure out what wire is the main power wire and what wire is the signal/trigger/remote whatever they call it and hook them up accordingly.  the main posative power wire from that unit should go through the firewall and connect directly to the battery.  if you have it hooked up right the sub will only turn on when you turn the cd player on, not when you turn the key.  make sure that main power wire on the battery has a fuse on it as well.  the sub may have a fuse on it (small blade style or something)  if not just tell me the make and model of the sub and I'll look it up.  anyway your fuse should be a little higher than the one in the powered sub.  so if the sub has 2x 25 amp fuses then that's 50 amps so you should have like a 60 amp fuse on the battery.  Etc.

good luck and let me know how it goes!

Answer
its very un likely that the screen thing (compas) up there is causing the fuse to blow, it just shares the fuse with the stereo.  If your sub is blowing the radio fuse it is simply hooked up wrong. disconnect the sub and make sure everything is working properly.  then double check all of your wireing to the sub.
Exactly what connections are there to the sub?  there is definatly a ground and the power wire going to the battery but you say there is no remote?  what make and model sub is this?