How to correctly wire T3s with Fusions/Cannons?

[the Tasty Cat]

Hey all - long story short I'm adding some T3s to my existing setup which is 2-mode Fusions and 3-mode Cannons. Of course the T3s are only single mode. I'm not using anything like a 4200, just a two-way switch for the two lighting modes on the Fusions and Cannons (the third Cannon mode is turn signals/cargos.)

Here's my question; I want the T3s running during each of the two stages, but seems like if I run a power lead from both modes to the T3s, power will bleed through the T3 connection to the other mode. What's the best way to prevent this? Diodes on each lead to only allow power to flow one way? Or is there some type of relay that will allow a circuit to be powered if there is power from *either* of two other circuits?

Sorry if this isn't clear, I know I'm not doing a great job explaining. Thanks for your input!

 

[billyfromhill]

Maybe some sort of maintained progressive switch that with the Cannons wired to the first position and the Fusions to the second?

 

[Jarred J.]

Diodes is the way

 

[MtnMan]

Use diodes to feed the T3s, or use a double-pole, double-throw (DPDT) switch.

 

[the Tasty Cat]

Great - thanks a lot! Wondering about this one:

https://www.etrailer.com/Accessorie...A2WyvDpsklbsBZTfG_fE6mny1H2L3_hsaAh3DEALw_wcB

Seems to have two inputs, one output; might be perfect. Just need to make sure one input wouldn't feed over into the other. Will call them tomorrow!