Two Triggers, one output

Hi - I'd like to control my footwell neons in the following manner.  If anyone could help me with a relay diagram it would be greatly appreciated.

Come on with the door open (negative trigger), and also come on if the parking lights are flipped on (positive trigger).  I know I can do this with two relays, but do I need to use diodes across the coils or anwhere else?

Thanks

Paul

Here's a simple diagram to use both triggers, no diodes required if you use the same constant 12v fused power source.

Wouldn't this work also??  Or would this cause some problems?

You should be able to do it with one relay.

Pin 86 - 12vdc

Pin 30 -(+) 12vdc output to neons

When the door is closed and the parking lights are off no voltage will flow to your neons.

When you open the door it will energize the relay and the 12vdc will run the neons.

If the door is closed and you turn on your parking lights the parking light signal will run the neons.

You should be able to do it with one relay.

Pin 86 - 12vdc

Pin 30 -(+) 12vdc output to neons

When the door is closed and the parking lights are off no voltage will flow to your neons.

When you open the door it will energize the relay and the 12vdc will run the neons.

If the door is closed and you turn on your parking lights the parking light signal will run the neons.

what, your relays don't have two 87As?????? 

Sorry about that.

Thanks for all the replies.  I don't want to do it with one relay because I plan on adding some other items to the circuit and think it would be too much of a draw on the parking light circuit.  

Thanks

If that is the case I would go with the first diagram.  The 2nd one will work, but its more complicated and tehre is no need to connect the relays together.  For troubleshooting purposes I would keep all relays as seperate as possible.

If that is the case I would go with the first diagram.  The 2nd one will work, but its more complicated and tehre is no need to connect the relays together.  For troubleshooting purposes I would keep all relays as seperate as possible.