wingrg

Hi, Hope this is the right site to post my question if not sorry for the mistake just new on the forum, and yes I use the search, but can't find my answer, well I have a 2006 F150 Lariat with 6cd in dash changer no sub installed of what I see and heard, but for my good luck someone give me for free the factory sub box with amp but is from a 2004 Ford F150 Lariat, my ride have the sub cable under the carpet, I don't have the sub in my hand yet, so I cannot figure out if my plug going to fit, I have to wait a few days, I take my radio out to verify the plugs and found 2 plugs disconnected for the total of 4, how can I identify the sub plug? my radio have 3 sockets and 1 for the antenna but no or the other plugs fit in the third socket of the radio that is empty, so I don't know if I need another radio or need a 2004 radio to make the sub work, I don't know if I explain clear sorry for the confusion, any link or page to read or experience to share going to be appreciate, just want to connect the sub to have a nice listening. TX