ok i found an OEM Navigation on ebay. its from a 2000 which is what i have but the auction is only for the face unit. do i need the brain thing in the trunk too. im pretty sure i do. he also has a wiring harness on ebay too but i think my car is prewired for the navi unit. when i did my system there were wires back there that i wasn't using so im pretty sure it is wired and the truunk lid says i am i think.