If you have heated seats you can either get the newer climate control with heated seat buttons built in this is the best way to do it. Or you can relocate them to the ashtray. I think metra makes a kit for that and I think something similar is included with the Dynavin.
2006 BMW 325i Titanium Silver
Mods- 19" AG M310's hypersilver, LCI xenons, drilled and slotted rotors, OEM rear spoiler, OEM exhaust tips, brushed black interior trim, Viper 5904 alarm + remote start
Audio upgrades- Alpine S920HD, JL XD600/6, Jehnert XE200, Morel Hybrid Ovation II, Audioque 2200D, 2 Alpine SWR 12d4's (forward facing sealed from trunk)