So there is a great sticky above regarding how to go from single to double din. However unfortunetly its doesn't say whether you need to change the climate control unit or not. Hopefully in the next few weeks I will be throwing out the crap pioneer ugly manifestation on my dash and putting in an OEM symphony II system. However I am unsure whether I need to change my climate control unit as I would be reluctant to do so as its perfect with zero wear. Any info appreciated.