When my insurance check came in it was co-written like that also, I had no problems depositing it though.
The unit itself is 600.00 from amazon, Toyota Direct is trying to make a preety dime.
http://www.amazon.com/dp/B0011XTUSS/ref=asc_df_B0011XTUSS828080?smid=ATVPDKIKX0DER&tag=yahoo-ce-20&linkCode=asn