Thanks lunasdude and RCW ... really helpful!! I was in a dark garage and it was really hard to see so I took a picture and when I look at it now on my computer it looks like they are there (attachment 1 and 2) ... red wire (with black stripe) and black wire. I am no longer at the camp but when I head back next week I'll open this up and see what I have to work with. I'll check the fuse panel to see what amperage fuse is in place so I know what I am dealing with in terms of sizing lights if I use the work light connection. Just so I am clear ... if I do use the existing work light wires I will be able to use new LED lights but only when the tractor is running which is likely fine. In that case I can add also a rocker switch (as it is already fused) so I can turn the light off if I don't want to use them while the tractor is running. If however I want to use the lights when the tractor is not running I need to run a wire (with an inline fuse) from the battery and wire in switch and relay before lights (per the attachment 3) ... in this case I assume I can still use the black wire from the existing rear wires (as the ground)? Do I have it figured out correctly? Also ... how do I size the relay in terms of amps? Thanks again guys ... so happy to have found this forum! Tightlines!
Not sure my friend about the wires you found.
On the BX series there should be 3 wires together.
1 black (- ground)
1 Red (+ wired to battery thru a 20 amp fuse)
Both of these are heavier gauge wires.
1 lighter gauge wire (+ positive)
The last wire is a lighter gauge + wire that is switched thru the key and is on a 10 amp fuse.
These wires should all be together with connectors on the end of them.
One will have a male connector and the other two should be female connectors.
Having said all that.
The wires for the work lights already on there should work and if you look at the current lights and they are conventional (non led) lights you should be more than safe replacing them with A good set of Led lights.
If you can find some sort of markings on the current lights it may give an indication of the wattage they are pulling.
This will really be guess work.
My guess is that the work lights may Using two of the 3 wires meant for lights in the back since they come on with the tractor.
Easy way to check is turn on the work lights, open the fuse box and pull and put back in one fuse at a time until you reach the one that is for the lights and it will have a number on it which will be the amps for the work lights!
As far as a relay, I used a very common 30 amp 12 volt relay available nearly everywhere, Walmart, any auto parts store etc.
The wiring diagram you attached will work great!
You will really only be limited by the fuse size.
If you find the current lights are on a 20 amp fuse you can go up to 240 watts which is a LOT of LED light!
If it is a 10 amp then 120 watts.
Hope any of this helps and is not more confusing.
Paul