Any numbers on the car's VIN are related to factory fitted equipment only.
To receive Sirius Satellite Radio on the NX501, you can connect the optional SC-C1 Sirius Connect Universal Vehicle Tuner 607SCC1 directly to the head unit's Sirius direct connection (no proprietary interface required), although this is no longer available, or try https://www.sonicelectronix.com/item_91789_SiriusXM-SXV300v1-70-Rebate-3-Months-FREE.html