2005 volvo s40 sirius radio

I just bought a 2005 volvo s40 and I want to install the sirius satellite radio system i had in my old car.  the problem is, I don't know where the AM/FM receiver is to hook up the FM modulator.  So if somebody has any experience with this and can give me some tips, or maybe just knows where the receiver is located, it would be greatly appreciated if you could lead me down the right path.

can u use a wireless fm mod that would be the best way or is yours already wired fm 850 volvo

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