Topic says it all, I have a 1995 LS Integra Hatchback, i'm not sure whether the remote start was a factory option or whether it was dealer added. So do I have to relocate the tape deck if I put in a new Alpine 7874 deck, I have a 6 disc CHM-S611 changer in the trunk and want to keep that

Also, I've got a bunch of audio crap in my room at the moment 2 12 inch bazooka's, bazooka el 1500 amp(they were insanely cheap!), 20 ft 4 awg wire, another 4 ft 4 awg wire for ground, 7 feet of speaker wire for my subs, in line fuse, battery terminal

What type of convertor do I need to get sound from my tape deck to subs? If I lose fade control o well, power's not really an issue i'll have 350+ watts coming out of the amp, unless my car can't take that. What size fuse for the battery 30, 40, 60 amp?