Car Stereos: radio problem, radio problem, extra current

Question
ok so i bought door speakers and 2 ten in subs i originally hooked the new door speakers up to the deck i bought but the speakers keep cuting out when i turned u the vol so i figured they need an amp so i ran a wire from the door speaker to the amp and i just got bass and not voice thur it so i hooked both the wires from the amp to the speakers and the speaker wire that was hooked up to the factory speaker and it work for a sec then nothing at all my deck still powers on and everything works on it but i cant get any sound to come thu the speakers i looked at the cars fuse and the one in back of the deck both were good and the amp has power to it but wont power up now. any suggestions? could my deck be bad even tho it powers up?

Answer
Yes, you probably burned up the amp inside your deck.  You can only wire one power source up to one speaker.  If you try and wire more than one, the extra current goes back to the source and burns it up.  The good news is that it is repairable.  If your door speakers are cutting out, you do need to put an amp on them, but not your sub amp.  Your sub amp has been set up to only amplify the bass, so you need to change the settings, or get another amp.  If you do use the sub amp for the door speakers, you should disconnect the subs.  It is tricky running power to two types of speakers from one amp.  It makes the amp very unstable and easy to blow.  Hope this helps, Scott