2 questions- Fasteners and Sonar Wiring

[Iceman]

The rivets are actually good quality aluminum and best option if you can not get to the inside the item is thin enough to allow good purchase . bolt and nylock good option if you can get to back side, well nut better than tapping screw.

the head units are water proof to a certain specification, cut out wiring and try from shortest distance of wire first and clean the corroded plug

[jorluivil]

The rivets that OEX are great quality rivets, I have some that I installed over 2years ago and they are still holding up. I don't recall what I paid for them but if/when you buy them don't buy the amount you need, buy at least triple the amount. Their shelve life will out last most marriages so it won't hurt to have a few extra on-hand.

[ProfessorLongArms]

Just wanted to follow-up and say thanks for the advice.

*finally* got the wiring fixed. I'll never launch again without doing a quick test with my Voltmeter on the wiring harness.

I actually had 4 different points of failure to fix before I could power it back on (battery terminal connectors not tight enough, battery box connector corroded, fuse box completely corroded, and unit plug corroded). took a surprising amount of WD40 and friction to get it all back up and running.

I recommend, as I did, going ahead and getting a dedicated voltmeter, a pack of crimp connectors, and some extra cable ties to keep in a kit with the kayak.