Just had another thought; I don't know how you are thinking about hooking your relay in, but you could hook one side of the relay coil to the parking light circuit, and the other side to the turn circuit, just like the old days circuit I described above. Power will go both ways through the relay coil unlike the LED. Then just hook the halos through a set of contacts in the relay. It should act like you wanted it to in all modes. If you did that, you should be able to run a separate circuit and switch under the dash for the halos, so you would not have to run the parking lights to run the halos. Or just wire them directly to the keyswitch, anytime the key is in run, the halos are on.

 

she says she doesn't want to run the halo's all the time. We will see. �� Anyways I have to assume the halo's are gonna be off in the daytime and the outside half of the halo needs to blink with the parking lights off. I realize this makes things a little harder to do. But that is what she wants.
I figured out it would be easy if the halo's were just on all the time but nothing is easy right?
I rigged up a test with a light and a 9 volt battery but can't figure out how to make it do both tasks.
1. Blink when off
2. Blink when already lit.

It's simple up to the point where you have to make it do it in energized and deenergized form.

As I am typing this I am thinking a relay on the ground side may be the answer.

Time to go test. ��

 

3 hours of testing and thinking and just can't make it work when the parking lights are off. Need help.
Franklin your way does work but it is real dim on my test set up. (Don't have halo's here yet ).
I am using a couple bulbs out of a old 86 f-150 instrument cluster for test lights.

 

My way does split the voltage down. It may be a little brighter with a 12v setup, actually the car usually runs around 13-14v. That would be at least 4v more than your test setup. But you are correct the lighting will be a little bit dimmer.

Why not try the relay trick. Go get a Bosch type foglamp relay. Hook the coil up my way and then hook your testlight through the contacts in the relay and then the 9v battery. In other words, hook the relay coil up with no ground, but inbetween the two circuits. See if it clicks at the proper times for your needs.

 

You need this

Custom LED Magic Blinker Motorcycle Running Light Relay Module | Custom LED | Motorcycle | tobefast.com

Or

You can do the same using two diodes parallel but you need to solder install them the right way and t tap each diode to running light and the other to turn signal. You need to add resistors too. Relays by themselves won't work (I tried it) to achieve what she wants. You can isolate but you need diodes and resistors and my diodes are in my service truck. I'm not sure what size or type of resistors and diodes you need. It would be some trial and error to get it right ( diodes and resistors would be needed for the DIY method

 

We're going the easy way. Running light or halo's have to be on to blink. She'll learn to love it

 

I think 1/2-1/2 looks a lot more different. Outer half stays on constant inners blink with turns.
(O O)