Car Stereos and Speakers
Geo Prizm
Lincoln Town Car

What size are the rear speakers in a 1990 Geo Prizm car?

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Wiki User
August 22, 2005 8:58PM

in mine, they were 25 watts a peice. they are 25 watts a piece and the speaker size is 5.25 inches. Standard size is 5 1/4", but 4" w/ an adpter plate will work and is you can find 6" or cut the opening larger, you can use larger.