[tracker2] nuvi 350 information needed

[Ron K7CDL]

has anyone on here ever waterproof a nuvi 350? i would like to set one up on my 
ATV but i do a lot of "wet" rides going tho a lot of creeks and lakes. i see 
garmin has the nuvi 500 but the 500 doesnt have the FMI i need.

73s
K7CDL
Ron