SiX_iN_a_RoW

Hey guys, a fair while back we changed my EA from 4 speed auto to 3 speed ( due to lack of funds so dont ask ) and My reverse lights have never worked since. Now, about 7 months later I have finally bothered to try and fix them, I pulled the fuse out and it was blown, put in a new one, blew that too, so obviously its hooked up wrong.
Can anyone tell me which wire coming from the nuetral safety switch is for the reverse lights and exactly where it heads. Does it come up into the engine bay first? or does it go through the tranny tunnel into the fuse box etc etc?

In the engine bay theres 3 red/black wires which we had to join together for it to start, Im thinking that perhaps one of these is for the reverse lights and is connected to the wrong one. ( stupid Ford having 3 of the exact same coloured wires within the one plug )

If anyone can give me a few details on where the wires SHOULD go thatd be a great help, my gregories manual is useless when it comes to wiring diaghrams, none of the colours are right for a start

__________________
Lets go find that Hotdog tree I planted

Lowered EF Futura
Black Steelies ( too cheap to buy proper mags )

73gscoupe

Not sure on EA's, but on my xa the NSS has four wires - two for reverse, two for ignition kill in 1,2,R, and D. On the xa power runs through the NSS, to the indicator assembly where it is sent to the two rear indicators. All the wires are red and black.

Stick a multi meter on the NSS, and play with it. you will soon work out what is what.

I spent a full day trying to figure out why my reverse lights would not work, before cracking open the NSS to find the contacts were good enough to give a voltage reading on the multimeter, but just worn enough to prevent any meanigful current going through to the reversing lights. I went through three switches before I found a good one.

SiX_iN_a_RoW

Im having no luck with it at all,
I know which two wires are for the neutral safety switch itself, which leaves two wires, red/black and a black wire. No matter which way i have these two wires around the reverse lights dont work! if I have the red/black wire joinmed with the red/black wire in the original loom it blows the fuse, if I hook it up to the black wire it doesnt blow the fuse but the reverse lights still dont work.
Could a faulty reverse light switch cause the fuse to blow?

__________________
Lets go find that Hotdog tree I planted

Lowered EF Futura
Black Steelies ( too cheap to buy proper mags )