Sorry sound system was part of the deal I have Lowrance
gen 2 hds 10 and 5 plus lss2. Tunes are mainly
to keep the person in the back of the boat happy
as they bring me a full beverage and take away the
emoty while I keep shaking my jig in front of some
crappie lol plus great for weather info but I guess
everyone does not need a sound system