noob stereo question, need help please! Options

[m0dd3d1]

So quick question guys, I'm looking at getting new speakers and a new head unit for my car and I was just wondering:

1 Are the front speakers on the door the same size/type/whatever as the ones in the back?
2 If I just get a good head unit (nothing special) and 4 new speakers along with new tweeters, will I need to do something about more power for them? How do I tell what I need to look for to make sure nothing gets overloaded?
3 If I get a double-din head unit like a screen, is that going to draw more power and cause issues if I don't somehow upgrade my power?


Thanks guys. I need all the help I can get, I know nothing about stereos.

[Redline08]

yea thats a good route to go i guess, my subs and amp sat in my room for at least 2 months while i debated how to mount them and save up the cash for a custom box and trunk floor, then there was the actual building of the box and stuff. It took alot of thinking and planning, i like the results tho, look around the site for a while youll get alot of good ideas!