HELP with an 08 dyna street bob

[texbombboy]

so my friend left his bike with me while deployed to put on some accessories. Most of the stuff was just bolt ons, but he has these mirrors with turn signals tach, speedo and maybe even compass coffee maker stove and usb port. Anyway got most of it figured out. The three leads i have questions with are the speed sensor lead and the two tach leads. I hooked the speed sensor lead to the green/violet wire at the back of the speedo. I do not know where to tie in the tach. I need to either find the right wire for the low side or an actual tach output wire. I have no skematics and am playin by ear for now. Any wisdom other than "you are nuts buy a book or take it to somebody" would be greatly appreciated.

[williamv1203]

One, if it is pink (possibly) will go to the right side coil terminal and the other, if it is orange, is for the light in the tach.

[srrice40]

Originally Posted by williamv1203

One will go to the coil and the other is for the light in the tach.

Yeah what he said. Unless it's a dual fire coil then it's a different story.