Need help with my alternator, 2.7l /6 Options

[tornik550]

First I will start by declaring that I am a known electrical idiot. I do have a basic understanding however I have thoroughly confused myself.

I have noticed that my car is often dead when it sits there for awhile.

When I converted my car to a 2.7l /6 I had to replace the alternator. I am not sure if my alternator works. It has been awhile however I believe that all I did to hook up the alternator for my conversion was to run three wires from the alternator and connect them to the corresponding posts (D+,D-,DF) on the stock relay board- in addition to a ground wire. I am not certain that this is correct.

Here are some thoughts about problem that I might be having-
-Installed incorrectly?
-bad alternator?
-I possibly just don’t drive the car enough and the battery slowly dies
-maybe I have too many accessories which pull more than the alternator can produce (all I have is an msd 6al and about 10 gauges. I never drove at night so my lights are never on-unfortunately my voltmeter is broken)

Can someone help guide me- either to help me wiring the alternator properly, or help me figure out where my issue is?