replacing factory speakers in my '99 GT Options

[runriot95]

I just recently got my '99 celica and I'm already itchin' to replace the sound system. My question is on how to remove the old speakers. The door speakers have 4 slots that look like you just slide a screwdriver in them and pry the grills off but when I do that it feels like I'm gonna snap the plastic grills. Any suggestions on how to remove these?

The rear speakers- I got the grills off but then I learned you have to remove the side panels as well. I removed all visible screws on the panel and pryed the trim panel away from the door jam but it seems like something is still keeping the panel on. Do I have to remove the rear seats to get at another screw?

Also, are there any tricks to removing the head unit that I should know about or is it just simply a matter of prying up the trim?

Any and all help will be greatly appreciated. Thanks!

[3TST]

I'm in the process of doing all this.
jontechie explanation is virtually spot on.

One thing to add is that you need to remove the door opening handle cover - one screw - and manoeuvre it out by flicking the front of the cover and opeing the handle. It's fairly straight forward to do. BUT the important thing is that tehre is another large screw behind this that needs to be removed before you can remove the door.

BTW: The original speakers are not exactly moulded in - it is the speaker grill which is an integral part of the lower door panel. The speakers themselves are "glued" onto the bracket. Well there not really "glued" - there is a silicon/rubber solution/gasket around the back, so you'll need to ease the speaker away from the bracket.

Oh yes!
You need 16.5cm diameter replacement speakers.
Why?
These fit the standard mounting brackets.

Anyway, if you have any specific questions - fire away.
I've been their and done that.