Late Combo Gauge w/ temp ('74) wiring to a '72 Options

[Literati914]

I'm hooking up a late combo gauge from a '74, the one with a temp gauge at the top (914.641.101.50) - into my '72.

I'm a little confused with the brake warning light circuit .. the diagram below shows two BR/YL wires for the M/C (apparently) & E-brake handle switch. The '72 harness has these wires as BR/WH .. so that's obvious. But the '72 also has a third BR/WH wire going to this light from the safety belt switch. So three BR/WH wires to this light socket via a "dual spade connector". Adding these three BR/WH wires at the warning light is again, obvious. But this diagram has no mention of the BK/WH/GR wire that comes from the hazard flasher. Maybe it was accidently left off - or possibly on purpose because the '74 didn't do it that way ? (IMG:style_emoticons/default/confused24.gif) If it's recommended to add it (via a second dual spade connector), which side of the light fixture would it connect to - RD/WH or BR/WH ?

[Literati914]

No oil temp gauge circuit in a 1972 chassis harness. Run a new wire as needed.

http://www.914world.com/bbs2/index.php?showtopic=372354

Agreed, I made sure to add the correct GR/BK wire back when I still had the harness out. I have that hooked up at the gauge and it seems to be active, it twitches when the key goes to "on". I haven't hooked it up under the engine yet, 'cause I'll be adding the tuna can and sender at my first oil change after the first engine run. So the temp gauge is covered.

Update - on the brake warning light ... I was right that the BK/WH/GR wire should replace the RD/WH one that the drawing above shows (brake warning light only). I made the swap and got the brake light on now and it's blinking at the "on" position. I suppose that's because I need to re-bleed my brakes after loosing most of the reservoir contents (due to missing washers inside the M/C, which was (IMG:style_emoticons/default/bs.gif) ).