Help! I've read over this thread in detail, however I'm still stumped as to what happend on my end. I have an 04 Legacy GT Wagon. I installed the mod correcly, I think, however my set up looked nothing like the pictures posted here. I soldered two diodes with the cathode pointed away from the map light on the light side of the map light switch.
When I popped the dome light off I found that there was no brown wire, there was a blue, white in the middle, and black. After testing them, one was ground, one constant 12V, and then one that would dim(that being the white one). I then hooked everything up and tested it out.
When I opened up the door the map and dome would light up, but very dimly, when closing the door the first time, the lights dimmed, but on the 2nd time they would stay on. Worried about the dimness, I disconnected the mod and now I can't get the dome light to come on when set to door. All other lighting in the car seems to be working fine. Did I fry something??
Any help would be greatly appreciated!!