Since something like 5 of my speakers are blown, I figure it's time to upgrade things, and I had a few ?'s...

I believe most of my speakers are 2 ohm, so by simply upgrading speakers, I'll loose something like half my amps power--correct?

So how do I go about adding an amp to my exsisting Delco HU (its the 10 speaker CD w/EQ)?

And what type of speakers to use with it to maintain a balanced system?

It seems the front wont be a problem as there are a bunch of 6.5" component speakers.

The problem is the 4" speakers and tweeters in the hatch area.

Should I just add a 4" full range speaker?

Are there any 4" component speakers out there? I found some at Crutchfield--Kenwood KFC-P403 for $80. Anybody have any experience with these? Do they fit?

A local audio shop also has a MB Quartz set of 4" components , but I've never heard of them. Anybody use these?

These were the only 2 4" components I could find.

If anybody has any idea of experience I'd welcome your input...

CL