i bought mine from this guy http://www.ebay.com/itm/120965744748...84.m1439.l2649
I don't know who he is or who they are... regardless, all I told him is I need it for a 2012 RAM 1500 - it has the dball and the harness together on his auction. As soon as I got it... plugged it in and fired right up. Once you connect it.. just follow the steps on turning it to ON.. then press off... then unlock.... then test it out.
Took me 5 minutes to install it.
Also, the starting the engine - as long as you get 3 honks within 3 seconds.. it should start... you can get 4 honks in 3 seconds and it will start - point is, as long as it gets 3 honks in 3 seconds - its the trigger.
Oh wait.. I also found that antenna info... let me find the pic.