Hi Fred. The only promotion FSI is currently running is for a free Clear Protective Cover with purchase of LM-0750W, a $95 value. You don't need a coupon code for that, it is automatically added to any 7" ordered before January 29th.
One way to save a good bit of money right now is to NOT order the DCAA-C5. You won't need that anytime soon and we will be replacing it with a newer version a bit later this year. If you want more details on this just give us a call (678.835.4934) and we'll be happy to elaborate.