Does any one know what size speakers will fit in the headrests, doors and front?

 

hope this helps

 

Certainly does. Thanks!

 

the headrest speakers are weird. They are like 3 1/2 X 2 and are in a little box. Not an easy upgrade

 

I do. And BTW, it varies whether you have S4, 89-S5 or 90+-S5 and possibly the trim/option level on the car. Later 90+ S5 do not have the dash speaker, at least in the vert. They have a 6-1/2" in the door, 4" subs behind the seat and the infamous, mysterious, hard to replace headrest speaker. Most people who read the online 1989 FSM don't realize that there was a change after 89.

Helpful thread, more information, same discussion.

https://www.rx7club.com/2nd-generation-specific-1986-1992-17/vert-headrest-speaker-size-573716/

 

Yea i was shocked when i pulled my door panel to find 6 1/2's in there. My infinitys are going in soon and i just took my rear speaker covers off and to fin i had kickers the guy must have forgot to take them out lol.