Adding Power Socket Accessory with Voltage Reducer

[coda8it]

First Post:

Just purchased a 2012 YDRE for driving around the neighborhood. It is great but after getting passed by fellow golf carters a couple times going up hills on the street I decided to upgrade to an Alltrax 500amp controller. Install went well and happy with the results. I think I pass them now and if Im not careful I get up on two wheels! So, Im finding out this is addictive. Couple other adds and now I want a usb charger installed but I need a little help.

I purchased this from Amazon:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I have a voltage reducer installed already. It is a Sure Powder 48v model 410202C00 with 6 pin connector. 3 questions and keep in mind I have limited electrical knowledge. See attachment photo for wiring diagram for both accessory and the voltage reducer.

#1. The accessory has an on/off switch. Which wiring diagram do I use on the attached photo from my on off power switch? Red out from the top of the 3 poles or from the middle of the 3 poles? I want power to the accessory all the time the ignition is on and just use the accessory switch to activate the usb plug when necessary.

#2. Which pin do I "tie" into on the voltage reducer? I am guessing either Pin 4 or Pin5. Would it be Pin2 since this is the ignition pin?

#3. How do I properly tie into this pin? The out wires to these pins are combined and I can't exactly see where they all go. Some even have fuses on the electrical lines. Can I just remove the wire that is attached to Pin4 or Pin5 or Pin2, lengthen the wire (it's pretty tight), and combine my new accessory wire somehow with this wire and then take it into the voltage reducer pin? Should I care if this new wire is tied in to a specific area on this line?

Thanks, could really use help here from someone who actually knows what they are doing!

When I get everything put back together I will send some photos. I think it looks nice and it is a lot of fun but I seem to be updating it more than I drive it right now!