'91 Vette OEM speaker sizes?

[Cabin_Pressure 10+ year member]

Have a relative coming in over the holidays and we will be replacing all the blown OEM speakers. The car is a 1991 Corvette Hardtop with the POS Bose system. Anyone know the sizes for each location? And ALL the locations? Want to get some ordered soon. I know i can look it up, but i figured someone might have some insight as to being able to increase to 6.5"s if the OEM are 5.25"s. And if they are component or co-axial.

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[brian84corvette 10+ year member]

im pretty shure that is still the C-4 style corvette.

my old 84 had

4x6 up in the dash

I cut out some 6.5" for the doors - mine did not have them installed from factory - but the back side of the door pannels showed where they went.

rear are 6x9

 

[Cabin_Pressure 10+ year member]

That helps me with the dash and rear, thanks. This one has some OEM type pods below(or low on) the door he said, he just hasn't opened them up to see/measure the speakers yet.