Wiring help! - IDIDIT relay, Russ Thompson turn signal, FFR dash harness

[Fman]

I definitely need some help from the forum, my brain is toasted!

I am wiring my dash harness on my mk4, have everything completed and now moving into wiring the RT turn signal, IDIDIT relay and also have a question about the dash wiring harness.

Starting with Ron Francis dash harness I cant find anywhere in the build manual about the connections in the picture I attached coming from the dash harness. The only wire I was able to hook up was the horn wire. There are other wires with spade connectors on it labeled, High beam, low beam, turn signal, etc. I am confused as to where I would connect these up to or if they are only indicator lights? There is already a high/low/dimmer three prong weatherpack connector that I will be plugging into the main harness. These other connections have me stumped, and I have read over the RF wiring manual and the build manual and cant find any information on this.

The RT turn signal and IDIDIT relay I am also confused on, is there a wiring schematic available as to how to I tie all this together? I even called Russ today and all he could give me was what colored wire controlled what signal. I did see the IDIDIT relay directions are pretty straight forward, just confused about how I link all three of these wiring harnesses together to make all this work.

Any help to get me going in the right direction would be awesome!

Thank you:D

https://thefactoryfiveforum.com/attachment.php?attachmentid=135047&d=1600126231

[Papa]

I can't offer any help with the Russ Thompson or IDIDIT stuff, but the RF harness you are showing is what would connect to the various switches for the Hi/Lo beam, hazard, and turn signals. Each of those wires is clearly labeled. All the RF harness info is in the harness instructions in the same box as the harness was delivered in.

https://thefactoryfiveforum.com/attachment.php?attachmentid=135050&d=1600131245

Sorry, probably not the help you are looking for.

[edwardb]

Exactly. Nearly everything is in the RF chassis wiring harness schematic.

- The three turn signal wires on Russ's assembly replace the turn signal switch in the RF schematic. Wired exactly as pictured there. The grey feed wire is attached to the common lead. The dark green (left) and light blue (right) to the appropriate other two wires.

- Assuming you want the button on the end of the turn signal stalk to do the high/low beams, there are the two wires from the switch out of Russ's assembly. One goes to ididit switch tan wire. The other to ground. Doesn't matter which. Pushing the button grounds the tan wire and switches the ididit switch.

- For the actual high and low headlight wiring, the iditit switch replaces the dimmer switch in the RF schematic. Wire exactly as pictured there using the purple, green and yellow wires from the ididit switch. You just need to add +12V battery power and ground for the ididit switch. You did get the instructions that came with it, right? Shows and explains pretty clearly. Just got that piece for my new build and it seems exactly suited to our needs. Much simpler than putting together the circuit yourself like the schematics that came with your RT turn signal assembly. And does the same thing, e.g. high/low beam switch plus flash to pass.

[GWL]

Exactly.

Paul,

Tell me more about this Ididit relay for Russ's turn signal set up. Do you have a number for it? I went to the ididit site to find it and could not. I could really save some space if that small box does everything the old wiring set up did.

George

[Papa]

I think this is it:

https://www.jegs.com/i/Ididit/535/3100006040/10002/-1?gclid=Cj0KCQjwqfz6BRD8ARIsAIXQCf0mfrEmLcOIlwElbZ SBZZNE1268VxqJwXmU2pKmfZdcCvhNl9GkQWEaAiwJEALw_wcB

[GWL]

I think this is it:

https://www.jegs.com/i/Ididit/535/3100006040/10002/-1?gclid=Cj0KCQjwqfz6BRD8ARIsAIXQCf0mfrEmLcOIlwElbZ SBZZNE1268VxqJwXmU2pKmfZdcCvhNl9GkQWEaAiwJEALw_wcB

Papa,

Note the ididit, in the above post, has an extra relay connected to it. Looks like the one you linked only does the latching relay that works the headlights the same way Russ's system does.

Thanks, George

[Fman]

Paul and Dave, thank you! Both of your replies get me going in the right direction. I think my brain was on overload today wiring, needed to take a breather and pause for a moment to clear my head.

As always, I appreciate you taking the time to reply back!

Travis

and Paul, you said "new build".... what did you decide on?;)

[edwardb]

Paul,

Tell me more about this Ididit relay for Russ's turn signal set up. Do you have a number for it? I went to the ididit site to find it and could not. I could really save some space if that small box does everything the old wiring set up did.

George


I think this is it:

https://www.jegs.com/i/Ididit/535/3100006040/10002/-1?gclid=Cj0KCQjwqfz6BRD8ARIsAIXQCf0mfrEmLcOIlwElbZ SBZZNE1268VxqJwXmU2pKmfZdcCvhNl9GkQWEaAiwJEALw_wcB


Papa,

Note the ididit, in the above post, has an extra relay connected to it. Looks like the one you linked only does the latching relay that works the headlights the same way Russ's system does.

Thanks, George

That's the one I was referring to. It has two relays and a circuit breaker on a circuit board. Nicely made. I've recommended it several times based on reviewing the description and schematic. Now actually have one on hand for my new build. Got it from Summit. Obviously Jegs (and probably others) has it too. Not sure why it's not on ididit's website. Looks perfect to me and an alternative to wiring one yourself with the trouble prone (my experience...) latching Bosch style relay. Will do the usual low/high headlight switching when the headlight switch is on. Flash to pass function with the headlight switch is off. Only difference is since it's not using the Bosch style latching relay, the last state (either high or low) isn't retained when powered off. But I'm fine with that. Don't see the instructions on-line. So posted a copy below. As I recall, either Painless or Ron Francis had a similar headlight relay pack, but without the flash to pass function. Didn't save any details about it though. I guess the main point is there are alternatives to the DIY circuitry that many use, and some struggle with.

https://hosting.photobucket.com/images/ab234/edwardb123/ididit_headlight_relay0001.jpg?width=590&height=370&fit=bounds (https://app.photobucket.com/u/edwardb123/a/499fb37f-2e07-4df1-84e2-8bcaee41b550/p/094d03ea-443d-4478-a3ca-cd89450a66ff)

[R. Button]

Ron Francis has a similar relay for the headlights.
https://www.ronfrancis.com/prodinfo.asp?number=RP%2D3

The main difference is the ididit has an extra power wire to provide a separate power, thus allow a flash to pass when the headlights are off.
The Ron Francis converts the old style floor switch for switch the high beams off and on. So if you are using the Ron Francis wiring harness it's a simple plug in to the harness, and then hook up Russ's turn light switch to do the high beam and low beam.
I never use flash to pass - didn't what to get someone mad at me to flashing the light at them! :) So I went with the RF relay

Once I'm able I was going to take pictures of the wiring I used to put the RF relay and Russ's turn light together. Also in my case I wired it all up with led lights. Found on Amazon a set of the dash lights that replaced the green, red and blue lights with tiny images, battery, right & left turn, and high beam. My headlights are LED, tail lights are the new 3 wire rectangular LED tail lights too.

135063

[R. Button]

RF wire harness colors match up to the plug on the RF rp-3 headlight dimmer switch. The rp-3 wires are red, blue, and brown terminating at a 3 prong plug.
When you look at the first post here, the wiring chart circled at the top are the red, blue and brown wires that go to the switch for high beams. Then there is a separate tan wire that connects to the wire from the push button on the end of Russ's turn light switch. The other wire from the push button switch goes to ground. Again this relay does not support a flash to pass if the headlights are off! But as others mention it reduces issues with the older latching relay designed for the 1967 VW! It's almost a simple plug it together.