Looking to purchase Audiophile HU with Sirrus compatability on ebay - anyone have input on what part numbers are correct for my new truck?

Have 2007 F150 Lariat Supercab.

On ebay, I noted auctions with parts:

6L3T 18C815-KE
6L2T 18C815-BK

What part numbers should I be looking for?

Thank you