If the antenna connection is not on the driver's side of of your new Kenwood unit you may need an antenna extension cable. I just went through this process on a JVC head unit and there is not much slack in the antenna cable. Some higher power decks will also benefit from a larger gauge wire (fused) directly from the batt. for the "always on" connection. Not sure if the 22wx4 of your unit crosses that threshold or not.