nissan altima 2003

I recently purchased this vehicle and the radio and wiring are somewhat more complex than my former 1995 GMC Sierra extended cab truck. I was in need of information on taking out the factory radio, and front and rear speakers, any and all info on that would be greatly appreciated. The speakers are 2ohm clarion 6x9's in the rear and it looks like the back shelf has to be taken apart to replace these speakers. They are not bose, but ndss (nissan dynamic sound system). I am looking to replace the radio with a pioneer DEH 5800, the rear speakers with alpine type R's, and in the future possibly adding a 12' to the trunk, but not really worried with that just yet. Any help is greatly appreciated.

Is there a question?

KarTuneMan wrote: Is there a question?

Nah. just wanted suggestions..but carstereohelp.com was a huge help.