who has completely replaced their audio system

I was just wondering if anyone has completely gone through their 928 stereo, you know out with the old and in with the new. I would be interested in hearing anything anyone has to say about how they tweaked their system out
My car is a 89 10 speaker system, i have heard there are amps here and components there ~

I replaced the head unit, had two speakers rebuilt and replaced the door speakers, but left the remaining components in place, my '90 GT with a 10 speaker system (now .

Well I just ordered the boss 7"screen BV9990 Up date; it was junk and sent back




But I have a Question about the speaker size
The large are called 6 1/2 but are the others called a 4 1/2 and the tweeter a 3"
I am looking at the Chaos Exxtreme line Up date; it was junk and sent back


I am also wondering about the different Amps?
what is is the best channel combination to hook up for those 10 speakers??
I was thinking of a 2 channel for the two 6 1/2' speakers and a 4 channel (frt & back Left & right ????) for the other speakers
theconsumerlink.com/BossAudio/detail/TCL+SE800/112



.

Today I went down and tried to match up some speakers. The 6 1/2 would fall in the hole. The mid size are smaller then 4" and the tweeters are about 2 1/2

Hmmm I think this is going to require some mods and I wanted to find drop in's

Dose anyone have the actual "size" that the speakers are to be. What the factory size was called. I tried to look up the original Blaupunkt speakers in mine but the numbers would not match up anywhere.

installing the new system now.
Went with JL speakers (XR653-cs), the new 600 watt (XD600/6)JL amp, Pioneer 7 inch (AVH-P5200BT) with Nav Module and a 800 watt sub (TS-SW251)

Pics and up dates to come