Door Speakers for My car

[btdickey99 5,000+ posts]

I am looking at 2 pair of http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=999 to go in my 2005 Volvo S40. I was just wondering if this will work since there is a factory amp. Are the current speakers in the ran 4 ohm 1 ohm or what? Does anyone think they could help as if this could work, or know where I could find out? Any help would be great please.....

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