KT 69 12 Report post Posted July 14, 2015 I purchased a new nuetral safety switch 69-73 mustangs. I have four wires going to the NSS in my painless wire kit yet the NSS has 2 plugs for many more wires. One connector plug is blue the other is black. Which do I use and what is the other connector for? Note my stang was a bare shell no wiring when purchased and I am wiring it with a painless kit and have none of the original wiring for referernce. It is an automatic 4 speed 4R70W out of 2003 mustang. Quote Share this post Link to post Share on other sites
Rsanter 158 Report post Posted July 14, 2015 Reverse back up lights Bob Quote Share this post Link to post Share on other sites
JD08 42 Report post Posted July 15, 2015 The description I found was for a 69-70 FMX and said there was one wire that wasn't used. I've got a 70 with a similar problem. My problem is that the shifter in mine was missing the NSS and I can't find where to plug it in once I get a new one.The transmission tunnel/cow/firewall area is not exactly the easiest to search and I don't know if the other end is even there. CJ Pony Parts description: Ford replaced the 1969-1970 version with the 1971-1973 version which has an extra wire for accessory options. 1969-1970 cars will not need the extra wire, it can be cut off or left alone. Quote Share this post Link to post Share on other sites
MikeStang 247 Report post Posted July 15, 2015 Buy a ratchet shifter and use the 2 micro switches they send with it LOL. Quote Share this post Link to post Share on other sites
