I have a 2005HD D/A with the bench type seat. Attached to the front of the seat is the 2 cup holder.
Does anyone know where I can purchase a floor console that replaces this cup holder or one fits in front of the existing cup holder? The wife want more cup and storage space.

You can replace the plastic panel on your dash with the pull down (2) cup holder. You can buy one brand new from G.M. for about $100 or possibly find one on eBay.