Z28_LT4

Help with a couple pinouts

I'm modifying my stock 2001 4.3 harness to run the 6.0 liter.
I have all the wiring figured out for my build except these 2-

Red connector pin 15
99 Silverado 5.3- (Brown wire) Gen T/O (starting/charging system)
2001 S10 4.3- (Red wire) Gen L (starting/charging system)


Red connector pin 52
99 Silverado 5.3 wiring- EMPTY PIN
2001 S10 4.3- (Grey wire) Gen F (starting/charging system)


What needs to be done to these 2 pins???????

Thanks Guys

Here's a link to my Build-
http://www.s10forum.com/forum/f213/z...-build-418899/