4640?

You're not taking the 4600 out of the arm rest of anything and doing any good since it's just an extended monitor. The brains to those are buried in the arm rest. 


If it's a 4640 you don't need to change any cables. Same plug the 2630 uses. You will need a display bracket w/ the 4 holes instead of the 2 that 2630 uses but that should be it.