'07 S40 Control Unit/Radio/CD Swap... Wil it Work???

[ohbucks]

I have a 2007 S40 and it was on the short side of having an AUX input as they were introduced in '07. My system is a single disc player, no AUX, no Auto climate control. I have found a new system from an '07 that actually has what mine doesn't. It's a single disc, with AUX and Auto climate control.

If I swap systems will it work in my car? If not, are there any mods?