Question on factory installed Huminbird and SI units. The huminbirds are supposed to have in line 3 amp fuses, where are they located?I am adding a bow 998 SI unit along side the existing 958 and was going to use the existing Lowrance 1400 power supply. Any problems with this? Should I add a in line 3A fuse or is it already protected somewhere else?I have a couple addtional questions, but lets start with these.Thanks for your help!