help..msd 8693 shift light install

[HyperGT]

Its a good question Chris, I also wonder if i could not just hook up the green wire to the green wire on the coil and not use the GMR. There is not much published about this that i can find. On Corral and the MSD site and honestly most folks use an MSD box with the Tach/shiftlight port.
I may just wait and buy a box as a new GMR is over $90 to my door, a good 1/3 of a 6al box, especially considering this one is already kaput and is new.

[ZR]

If it's indeed kaput, might want to consider a Raptor. In my experience, have been 100% reliable.

[HyperGT]

Only the GMR is kaput Rick (I hope) , i JUST bought the shift light, but have heard good things about the raptor.

[ZR]

Bites when something is DOA, hopefully you get fixed up.

[HyperGT]

thanks chief. Although recent posts put it all in perspective.

[ZR]

Haven't we all been guilty of feeling a lil too sorry for ourselves only to be shocked back to reality.

[B-blown]

I hooked up my MSD 8693 and I bought my shiftlight used and it didn`t have the GMR ... I bought a new one and hooked it up using the neg trigger wire on the coil and it worked absolutely perfect ...the only issue I have is that one of the little rubber buttons for programming is missing so its a bit of a pain to reprogram it every spring when I put battery back in

[HyperGT]

hey thanks!! so you mean the green wire on the coil to the green on the shift light, then red to 12v power source and black to separate ground??

[ZR]

Green would be neg trigger your looking for.

[HyperGT]

OK will give it a try today if after i spend some more time with the kiddies.