Ok I have a Fox and I want better sound! I really like Infinity so I am going to try to stay with Infinity. For the 3.5s I am going with these. Now for the doors I need 6.5s. What is the difference between components and regular speakers? For regular 6.5s I would go with these but if I decide to go with components I will get these . Now with a component set will I have to run an amp? And for the 6x8s in the back I will most likely use these. If I need an amp for the components would it be a good idea to get a 4 channel amp and run the components and the 6x8s? Would there be any mounting depth problems with any of these speakers as well? What is everyone's opinions on my ideas? I need all of them I can get because I am ready to buy! Thanks and sorry for being so long.