Small update!
I couldn't stand the distortion any longer from the original speakers, so I went out and bought some new speakers(You can find the discussion in the Electrical/Ignition/Fuel Injection section). I decided to install the speakers myself, so I could learn more about the car, and of course to save some money. I only had one condition and that was to keep the stock Toyota headunit.
Fronts - Pioneer TS-A1702C 6.5in Splits
Rears - Alpine Type-S 4in
Amplifier - Pioneer GM-6400F 4Ch



I learnt a lot from the install, from removing the panels, to making MDF speaker mounts and laying the speaker wiring. I had a friend help me out...and he ended up going to hospital to get stitches. His leg got caught on a metal bracket [B)]. I wasn't 100% confident in doing the wiring from the amplifier to the headunit, so I took it to a auto electrician to finish off correctly first time round. As for the result, sounds amazing.
I wish I mounted the amp differently, so I will prob take it out and redo it. I screwed it to the firewall. I only did two screws, because I was having second thoughts. After reading robk's build thread and seeing that he mounted it onto MDF that rests behind the carpet... was great idea, can't believe I didn't think of it.

Poo poo old speaker