Installing CO2 tank outside of Kegerator??

[cjdj]

I just got another CO2 for a really good deal. It is a 20# tank and I have my Kegerator able to hold 3 five gallon kegs, but if I put this in there it won't work that way. The brand of kegerator is a Keggermeister. What I want to do is drill a hole thru the sidewall and use a bulkhead fitting to feed into the kegerator. I know that there are lines hidden in the units walls. Is there any way I can get a hole thru it without taking a chance on hitting anything? I know I have seen the corn starch thing, but is it a fool proof method?

Thanks in Advance.

 

[TheBeerNerd]

I know a lot of people run the line through the drain hole in the bottom of the kegerator...

 

[cjdj]

I would do that, but the hole isn't big enough for the tube to fit through. I am wondering though if it would be possible to run the line through the back of the tower at the base. It would really not be noticeable at all. What is your take on that?