BMW Auto klub ČR

What is the resistance on original speakers in a 1994 bmw 540i? What is the resistance typically found on the speakers of an e34(1990-1995) bmw 540i? What are the ohms?I got a car radio system(just the stereo no speakers) and I believed I wired it correctly but the speakers aren't working. Thanks in advance for your help.
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market samurai ~ marketsamurai ~ marketsamurai.com

MOD(Fantucci): I have moved your question to more suitable section of this forum. Somebody will surely advise.