I hope I can help you...first call up Raymarine directly ask them if they still
got in stock any DSM25 new or refurbished for warranty,if yes call Starboard-
Marine in L.I. (516) 764-1224,they are dealers for Raymarine and got good
connections with them,ask to order you one,cost me about $250 for RB unit,
good luck...and don't waste your time calling dealers on the net,no one as
NO ONE,got any in stock,I was in same situation last summer.
Simong.