1996 Cadillac Deville car CD player problems. Wiring?

Electrical problem
1996 Cadillac Deville V8 Wheel Drive Type unknown Automatic 85103 miles

Ok, I had just got a cd player 2 weeks ago and decide to hook it up myself. After I finished installing the cd player I couldn't hear anything and the fuse keep blowing. So I figure out that it was a wire or the busted speaker on my front passenger door. So after I went to a "professional" and got a new speaker put in everything was working fine. Then, I figure something strange keep happening everytime I hit the remote button(twice) to unlock the door, the antenna will go up half way and then come back down. I don't know what in the world is going on either, cuz everytime I cut the cd player on It lose its memory then I gotta keep setting the radio stations and so on. After that I took the radio out just to see how they installed cd player, and the only thing they did was ran a yellow wire to the steering column. My question is that the reason(wiring) why the cd player is actin like that?