It looks like my '96 Accord LX needs 6-1/2" speakers in the front doors. I want to replace the old original speakers with component speakers. Am I going to need some kind of adapter to get the new speakers into the opening? Is there a 3 hole or 4 hole opening? I plan on mounting the tweeter after drilling a hole in the black mirror cover so I get the highs up higher than the main speaker.

It looks like there are Pioneer speakers in the back, and I'm not sure if they are factory speakers or not. What size would I need for the back? Will regular 6" x 9" speakers go in there?

Thanks for any help as always,

Barry