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Wedge Mystery TR8 relay?

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Darrell_Walker

Darrell_Walker

Jedi Knight
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When I removed the center console to install my new radio, I found a relay
mounted to the back of one of the attachment screws.

(1981 TR8 FI w/AC)

Is this stock? I can't find any wires with those colors in the wiring
diagram. If it is, what does it control? Is that the correct mounting
place?

As you can see, the connectors are not insulated, and I did spark the power
lead. It no longer has power, but doesn't appear to be feed by the fuse
panel. I haven't checked to see if the black thing on the red wire is a fuse
or just a connector.
 

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Could be the one Mike talked about, the turn signal relay.
Ground isn't much good if it isn't mounted
 
Not sure what they're for there, but those colors are usually used for aftermarket radio hookup. Red is wired to ignition circuit; yellow is hot (for clock and memory); and blue is the power antenna lead.

But why they'd be hooked up like that... ?
 
There shouldn't be an antenna lead in the front
 
I can't find any relay in the turn signal circuit.

It wasn't used for the previous radio.

I didn't have time to trace any of the wires back to anything this morning, but it is looking more and more like an add-on. The red definitely has (had) un-switched power, so either the blue or yellow would have to be the control and the other to whatever it powers.
 
Darrell, from Mike from Woody's site

"... The turn signals relay is under the drivers side of the dashboard just above the hood pull handle with two wires and if original rectangular flasher then that will be the issue. You can get any two pring 12V flasher to replace it. Most likely it will be round."
 
DNK said:
Darrell, from Mike from Woody's site

"... The turn signals relay is under the drivers side of the dashboard just above the hood pull handle with two wires and if original rectangular flasher then that will be the issue. You can get any two pring 12V flasher to replace it. Most likely it will be round."
Click to expand...

Ok, you mean the flasher (which I guess is also a relay). I don't think it is that one, but something to check.
 
DNK said:
There shouldn't be an antenna lead in the front
Click to expand...

Definitely used in aftermarket harnesses:
 

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Oh, you meant from the stereo, why didn't you bloody well say so. :laugh: Sorry about the British word there. Just finished watching top gear driving some sporty type cars thru the eastern seaboard.
 
DNK said:
Oh, you meant from the stereo, why didn't you bloody well say so. :laugh: Sorry about the British word there. Just finished watching top gear driving some sporty type cars thru the eastern seaboard.
Click to expand...

I did!

<span style="color: #FF0000"> <span style="font-style: italic"> Not sure what they're for there, but those colors are usually used for aftermarket radio hookup. </span> </span>

Best you stay away from Jeremy & Co. :wink:
 
But I gathered that you meant from the car side.
You didn't specify sides!!
grin.gif
 
So, back on track: What have you found, Darrell?
 
Mickey Richaud said:
So, back on track: What have you found, Darrell?
Click to expand...

I won't get to dig around until this afternoon. I was hoping it was some standard bit, but that doesn't seem to be the case.
 
Your right to be suspicious. Think Mick's on the right trail.
Why someone would use a relay for a stereo is beyond me.
Here's the blinker relay in mine. Sorry about the dark pic. Small flashlight

Signalsrelay-1.jpg
 
DNK said:
Why someone would use a relay for a stereo is beyond me.
Click to expand...

Newer stereos generally have a constant power source (which pull the bulk of the current and preserves the memory), and a switched input. But I think older units, especially if you were adding on amps and such, didn't have that, so using a relay was probably a good idea.

But there isn't any evidence that this car had that kind of setup, it had a newer Alpine unit when I got it, and an old AM/FM/Cassette and the original speakers in a box in the boot. But lots could have happened in 30 years, and the metal-cased relay would suggest that this was added some time ago (which was what really started me wondering if it was original/stock, but after contemplating the wiring that doesn't seem to be the case).
 
That black thing on the red wire looks like an old noise surpressor. Makes it more likely that it's for a radio.
 
I thought that was a sleeve it was coming out of.
 
At first I thought that from the picture but Darrell mentioned he thought it was either a fuse or connector. Made me look closer.
 
It looks like it comes apart, initially I thought it was a connector, but I'm hoping it is a fuse.

You can only see about half of it in the picture.
 
OK, here is what I've found so far.

The black thing on the red wire is indeed a fuse holder. The fuse was not blown.

The red, yellow and blue wires go up to the wires under the "speaker" cover.

The red is connected to a solid purple wire (which was cut), the yellow is connected to the other end of the purple wire.

The blue wire is spliced into a blue with red stripe wire.

Time to study the wiring diagram again.

-Darrell
 
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