What kinds of GPS's and transducers do you guys use. My old Garmin is unreliable. I get no deepth readings and it's always losing its signal. I want to get a new unit and there's so many to coose from. Also would a thru-hull transducer work on a 98 gun? I had a Garmin 498 with a thru-hull on my Baja and it always worked just fine.

Thanks