Each one of those round black things is a socket for a tiny light bulb. There are ten of them: the left and right turn signal indicators, the high beam indicator, six for panel backlighting, and one is a generator warning light. We don't actually need a generator warning light, since we're planning to add an aftermarket voltmeter, but the harness has the wires for one and we're not sure whether not connecting them would affect anything, so we used one of the unused lights. Theoretical future owners of this truck will presumably be slightly bemused to be told about an alternator problem by a light labeled TAND'M LOCK, but anyway. :)

This wiring harness is a quality product, but some assembly is definitely required. Each one of those light sockets and the connectors had to be installed by hand, and the ones that go to multiple places (like the power wires for the lights and gauges) had to be spliced from a single strand.

Things you may be wondering about:

- The unattached pink and purple wires are for the optional tachometer, which we don't have yet but will probably be acquiring.
- The unattached blue wire is for an oil pressure gauge, which will be part of the same aftermarket package as the voltmeter. The stock one in the panel is mechanical, not electrical, and we're probably not going to use it.
- The unused electrical connection in the bottom row is for the stock ammeter, which we're leaving unconnected in favor of the aforementioned voltmeter.
- We have connected the stock temperature gauge, but since we're not sure whether it works and it's not super-informative anyway, we'll probably splice into those wires and share its signal/power with a third-party one. Those often come in sets of three anyway, so we might as well.

The panel is ready to go back into the dash, but we have a bunch of work still to do on other stuff in the dash (such as the ignition switch and turn signal switch), which will be easier to do through the hole where the panel goes, so we won't be reinstalling it just yet.

Progress! This electrical stuff is a complicated job. And just think--this vehicle has a downright primitive electrical system by modern standards...

--G.
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.