I am trying to fit a battery powered clock to the passenger side dash on my 69 convert.
I am using an XR7 dash.
All i need to work out how to get the back lighting to come on with the other dash lights.
were does the two green plugs go, and were does the long single wire go also.?"
Any help would be much appreciated .
Like night and day !
There should be plugs already present in the wiring harness above the glove box to mate to the green plugs. The long single wire plugs in below the radio if memory serves. But it’s been a while. For illumination purposes, you only need to be concerned with the blue w/red stripe wire (power) and black wire (ground.)
The loom is for an XR7, mine is just the bass model which never had a clock so there doesn’t seam to be any corresponding plugs for the green plugs.
Does the single wire only requiring a power source , but will i need to break into the black ground wires to ground it ?
Hello Pete,
Below are scans of the schematics for both Standard & XR7 dash wiring. Referencing the Std. schematic (for instrument clusters that were equipped with a clock), plug connection #36 would connect to auxiliary harness C9ZB-15A006-B that would then connect to the clock’s male spade terminals at the back of the cluster. You could consider making a 2-wire jumper harness (12-volt positive wire & ground wire) that would connect to Plug #36, and splice into a modified version of the clock wiring harness that you already have. The existing female / male plug on the clock harness could be used as the splice source. The non-used remaining female / female plug could be wrapped with electrical tape as a precautionary measure… but would not necessarily need to be removed. The clock wiring harness that you show above is for 1970 and is slightly different in design than the 1969 clock harness, but is adequately usable to achieve the clock install that you are doing. If that single wire is solid Black in color, then likely a ground source. If Blue or Purple, likely a 12 volt source. If not needed… you could choose to terminate the wire or loop-plug it into the corresponding positive / negative side of the female / female plug to contain the path. Perhaps you could hook a 12 volt battery charger to the female / male plug of your clock harness and use a test light to see if that single wire is positive or ground.
For your convenience, I will also e-mail these wiring schematics directly to you. Hope the info is helpful. Stay well there in New Zealand.
1969 Standard Dash Wiring
1969 Standard Dash Wiring (clock plug zoom)
1969 XR7 Dash Wiring
1969 XR7 Dash Wiring (clock & map light zoom)
The one smaller green plug is not used. I’ve tried to show / trace where the single wire bullet plug runs. My pic doesn’t show where it ends.
*Note that the unplugged bullet plug in the pic is actually for the glove box light.
Hope this helps!
The long single wire should be power to the clock lamps. Find an unused female connector on a blue with red stripe wire to plug it into. Again, lower middle of dash, IIRC. A length of wire with a bullet connector on one end and a round lug on the other will make a good ground jumper. No need to cut into anything.
Mike, Does your car have AC?
Also, PM Sent
Could you send me a higher resolution pic of those wiring diagrams?
Hello. Certainly, just P/M or post an e-mail address.
I used plug 36 (thanks Garry) behind the dash cluster which was unused,
then ran the long wire to the center of this, then ran a earth to ground from the small male green plug .( thanks Jay)
Every thing seams to go on and off with the dash lights.
Success !
I was hopping to have fitted the new cluster lenses in by now, but the C19 has caused all sorts of problems with shipping so i have to hurry up and wait a week or two to find its way to me.
It left the USA last Wednesday.
I then decided to reco the door hinges, after taking them off i found my 13mm drill was stuffed, but because of our total lockdown and all non essential shops are closed i cant buy another drill at any price so every thing else has ground to a halt !!
