Stock speakers May 24, 2007, 02:42:24 PM WHat size stock speakers do I have in my 88 thunderbird?. I wanna replace, but don't know the sizes......6x9's what?. Quote Selected
Stock speakers Reply #1 – May 24, 2007, 07:28:04 PM In the rear deck you should have 6x8"s and the doors should have 6 1/2" then the dash shouldh have 3 1/2" speakers. Hope that helps. Quote Selected
Stock speakers Reply #2 – May 25, 2007, 12:00:15 AM 6x9s will fit in the back with a little ingenuity. Quote Selected