Cooling fan plug, shouldn't I have it?

[lostissues]

I just got a 97+ 10 blade cooling fan and put it in today but have not wired it in. my truck does not seam to have the cooling fan wiring harness and I thought that was weird. I checked an 88 Cherokee that was at the same place and it had the plug and fan from the factory. the plug was routed out of a wiring harness that was just behind the drivers side headlight. on my truck (87 with not AC) did not have any plugs coming out of that part of the harness

 

I circled in red the area with plugs that are not in my truck and I'm wondering about.

the plug labeled "Diode module" is that where the other 2 plugs (fan motor and radiator temperature switch) plug into?

 

I guess I'm hoping that I can grab the harness out of a junk yard and just plug it in.

I would think that they used the same wiring harness for every truck (with same engine) but I guess not.

 

Thanks,

Jonathan

[lostissues]

anyone have any insite on this? I don't want to wire in a relay in if I can just plug a harness in. it would just look better.