newport996

What size are the stock speakers in the dash door and rear....Next whats the biggest I can get into each one of those areas? Thanks...

Scouser

4.5 inch. in the dash and rears. Dunno about the doors.
The main issue is the depth of the drivers in the dash.
There isn't much room under there.

Rob in WA

The doors are 5", though a 5.25" will fit (Focal 5WS). Dash and rears are 4", maybe a 4.5" will fit though if the magnet isn't too deep.

okbarnett

In the Bose system; the dash and rears are about (woofer 4 1/2) (tweeter 1 1/2) I substituted same sizes and had to highly cut/modify the stock grille. The door boxes had a triangular frame 4 1/2" and I did the same to the bose box and got a max of 5 1/2 woofer there.
I have the whole Bose 680 option speakers , sub woofer and amp and radio to sell if anybody is interested. ( porsche CDR 23 radio will only work in 03, 04 because of integrated alarm and computer interface) reply to; okbarnett@tampabay.rr.com