vhf radio turns on then dies, no cuddy lights, no horn, lights, wipers, etc which are all connected to dash switch panel or direct to dash fuse panel. Anything wired directly to batteries with in line fuses like down riggers, kicker steering etc are ok. Guages/helm shift/starter/ big motor wired separately new 3 yrs ago with new motor - all ok. Use #1 battery to start/run big motor, battery #2 while trolling. Charged both batteries, #1 starting battery 12.7, #2 deep cycle battery 12.5. Battery #2 on - Tested vhf radio at radio 12.5, at fuse panel 12.5 without fuse 0, fuse panel itself 12.5. Same results with battery #1. Tested fuses in panel and any in line, all tested good.
Any ideas where to check next are appreciated?
Any ideas where to check next are appreciated?