I asked this in the following link...
https://www.6speedonline.com/forums/...ad.php?t=83011

I just recieved my iPod extention chord from Eric at Bumper Plugs and may attemp this on my own in the next week. I have located the removable inserts where you enter the cabin but am not sure how to make the perforations water tight. I am not sure what to use to seal the holes i would make in the plastic circle inserts. If anyone knows the correct material I would appriciate the input.

Let me know if the thread helps on wiring to get into the cabin.