pos trigger to neg output?

Hi guys.  I am trying to get my positive door/dome light trigger to output a negative signal to control the maplights on a new Gentex rearview mirror.  My car is a 2009 Jeep Wrangler.

The Gentex mirror came with a relay box that had a switch for vehicles with + door triggers, and it worked, but the thing was really loud when turned on/off and it buzzed when the dome light would fade out.  I cut the box out and got a solid state relay to replace it, but I can not get the thing to work right.  Can anyone tell me the best way to wire it?

I can only get it to work opposite the dome light or stay always on.  Do I need to use two relays?

thanks

Or just use the neg. door triggers in the vehicle, and diode isolate each wire you use. Just use the wires you want to actually turn on the lights.

	LF Latch		VIOLET OR VIOLET/WHITE		(-)		IN HARNESS IN DRIVER KICKPANEL
	RF Latch		VIOLET/WHITE		(-)		IN HARNESS IN PASSENGER KICKPANEL
	LR Latch		VIOLET / YELLOW OR VIOLET GRAY		(-)		IN HARNESS IN DRIVER KICKPANEL
	RR Latch		VIOLET / YELLOW		(-)		IN HARNESS IN PASSENGER KICKPANEL
	Trunk Trigger		VIOLET/ORANGE		(-)		IN HARNESS IN PASSENGER KICKPANEL

How would I do that?  I'm using a Hella H41773001 like this  http://cat.hella.com/hella232/jsp/details/content/Object.jsp?editedObject=¤tObjectid=CA@USAData@PR@H41773001&type= &updateObjectid=true&backlinkId=1249246688791¤tObjectIndex=&SearchResultList==

thanks

This is almost too simple to answer but that relay will have 4 or 5 terminals. 85, 86, 87, 30 and possibly 87a.  Ignore 87a.

Take your domelight pos feed to 86,

ground to 85 and 30,

Neg output from 87 to the Gentex mirror, or even easier to modify what Mikvot says, take one or all of the door triggers, if you take more than one, diode them together with the bands towards the door triggers and feed them to your Gentex mirror.

That relay shown is $40 for $4 go to Radio Shack

Thanks, but that is the way I tried to do it before posting here, and it doesn't work.  Could it be because the relay is solidstate?