Already a few threads about this. Including a mod that requires no module and plays through your xm source when you put in your headphone jack
Works on either the single CD or monsoon CD6 system as well. A xm equipped vehicle (whether u pay for the service or not) is all that's required.
A set of RCA's and a RCA to 3.5mm jack is all you need.
I couldn't live with out it.. I'm not ready to install a double din and I hate burning CDs.. now I just play Pandora/Jango or downloaded music from my GalaxyS3
The PAC module's ability to adjust the input levels for a higher pre-out voltage is nice though
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