Has anybody replaced the frig on a 330SS? I have a Norcold DE-351 D-F that only works on A/C. Of course parts are no longer available, and it's 22 years old. Sooo, I guess its time to bite the bullet, and buy new. I see several listed as replacements, but some folks have commented that I may have to make some mods. Anybody do a swap, with no mods to the boat? I'm trying to make this as simple as possible. BTW. warm beer sucks!!