Stereo Question

[zen20]

i have a yaris 2001 GLS. i brought my sub and amp ages ago but due to the lack of knowledge i havent been able to install them. And having the worst luck, 2 out of 3 pairs of my Speakers blew. The pair at the door and the pair next to the passenger seat (parcel shelf right?) both blew. Very annoyed at the sound in my car atm.

Can somebody give me some detail instructions for doing the wiring so that i can install my sub and amp? The headunit i got is a aftermarket one. I was also planning to change the Speakers since im annoyed at the sound. Im gona get a pair of component Speakers to replace my current ones. I think i know how to install the ones at the door but i have no idea for the ones on the dash. im also gona take out the ones in the parcel shelf. Can anybody give me a guide or instructions to do this?

Thank you