Okay I'm wanting to put a new head unit and sub in my escape. I am just not sure of all the parts that I need. I know i will need to get a double din dash kit. But i do not know what wiring harness I will need. I do not have synch or blue tooth or the back seat aux plug. I do have the aux plug up front but i believe that the new head unit i will get will have one so it is not completely nexessary. I am just wondering what wiring harness I will need because i do not need the special harness to keep everything working because i do not have everything. Help would be much appreciated.