Full car audio package for Christmas

Hey all,

First I'll start off by saying I'm new to this forum, and that I know little about car audio, but I know my basic stuff.

Anyways, with Christmas coming up I want to reoutfit my son's car's audio system. He has a 1999 Honda passport, it has two tweeters in the front A-Frame, two 6-3/4 " speakers in the front door, and two 4" in the back.

His car was bought used and came with all stock speakers. The tweeters are fine, but the back two 4" are blown and he installed two sony xplode 6-3/4" in each front door, and some pioneer HU.

I don't know a lot about name brands or any of that. But I do know I want to get the whole shabang. Replace the back two 4", get an amp, two 12" subs, and possibly replace the front two 6-3/4" as well. He doesn't need the top of the line stuff, but I don't want to get him any sub-par system either.

What types of speakers, brands, and equipment would you recommend?

Thanks,
Sandman