Help install rear deck speakers - 99 PA

Hi, So my dad wants new rear speakers in his PA (they're blown) and I was hoping someone has instructions on removal/installation. He just wants me to send him to BB or CC for xmas, but I'd rather spend the money on better speakers and install myself.
TIA

Four plastic retainers hold each speaker on. Just take a pair of pliers and pull them out. If it has a factory amp you'll have to drop it down to get at the driver side speaker.

wow so I can get at them from the trunk, or directly through the speaker covers? My dad thought that you had to take out the whole read deck and the seats to get at them. Can you confirm that for me? THanks!

Yes, they can be removed from inside the trunk.