Here's a guide to installing bigger speakers in the front doors of an 86.5-90 Supra. http://gallery.sanitylapse.com/v/supra/Front+Speaker+Install+1-21-06/
Supra mkIII 5.25" or 6.5" front speaker install guide
- Thread starter wdb
- Start date
Good find. Only problem I see is after installing the bigger speaker still only half of it is exposed to the cabin. I'm sure the outter edge of the speaker is going to be dampened by the covering metal.