I did it, went through the car wash with my Antenna up and need to replace the mast. Do I need to take the whole unit apart or can I just remove the mast and cord from outside the car? I have watched Youtube on how to take the whole unit out when the cord isn't attached to the mast ... is it possible to remove and replace without having to go inside the panel and removing the whole unit? Anyone know if this is possible? 2004 SC430