02 Patrol Stereo Wiring

Hi all. I have just put a Kenwood MP3 CD player in the patrol. I went around with a multimeter and sorted all the wires but I think I have made a mistake with the power aerial. I connected the earth on the stereo to the pink in the loom (and left the aerial wire from the stereo unconnected) but I think now that that must be the power aerial wire and the earth must go throught the metal case to the chassis when you screw it to the vehicle. What is happening at the moment is that as soon as you plug the stereo in the aerial goes up.

Also the power aerial connection is a two prong connection with an earth on the side as well, two cables fed into this connection. I have just ordered an adapter from the auto elect. He had an adapter to go the other way - from the stereo to a normal aerial connection and it had two cables with both a male and female std coax aerial connections out. Why did it have a male as you only need a female? I want to install the stereo into another vehicle thats why I will need both adapters.
Cheers