Best Method for Terminating Unused Wires?

Thats exactly how I do it - kind of hard to explain.

I don't have a set limit of how many wires to include.  I think in the installation pictured above I had one group of spares from the main harness taped together and then a second group from the auxilary harnesses taped together (I think the second group is just north of the thick red wire (and north of the thicker black antenna wire). 

I always do smoketest option 2, at a length of about 6 to 8 inches like others on here, but do like KPierson's idea.  I think I'll give that a shot next alarm I get....

• Bend the end of the wire over.
• Slide a piece of heat shrink over the wire, but not all the way down. You want to leave the heat shrink sticking up past the wire.
• Shrink the tubing.
• Immediately after shrinking the tubing(while it's still warm and flexible) moisten your fingers and pinch the end shut.

This will completely insulate the end of the wire and the heat shrink locked in place so it won't fall off. I can post pics if anyone would like.

• Bend the end of the wire over.

• Slide a piece of heat shrink over the wire, but not all the way down. You want to leave the heat shrink sticking up past the wire.

• Shrink the tubing.
• Immediately after shrinking the tubing(while it's still warm and flexible) moisten your fingers and pinch the end shut.

This will completely insulate the end of the wire and the heat shrink locked in place so it won't fall off.