How can I find a wiring diagram for the SRS? or just the complete under dash wiring diagram (Free)

Did you check for voltage at the 50 amp fuse circuit. Even if the fuse is good if no voltage on the fuse circuit, the circuit is still dead. There is a light green wire that carries voltage from headlamp switch to dimmer, is that wire hot with headlamp switch on?

There are wiring diagrams for free, just about everywhere, if you don't have one. Autozone .com has free wiring diagrams on vehicle repair guides link. You have to register your vehicle, year--make--model, all that good stuff. It's free.

What was your reset procedure? It should have been done with the yellow 2 pin check plug for SRS. The SRS system is isolated electrically from the rest of the vehicle systems, perhaps you got something loose under the dash while looking for the SRS plug, it is around a bunch of wiring. Also, if the light came on there is a failure. You should be getting the code read, it could be important. If the failure is a seat belt, they are covered by Honda on a lifetime warranty, at least in the USA. Did you check fuses in all the fuse boxes, under hood and under dash?

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get complete guide on whether to repair or not, service it, and how to repair etc, along with
wiring diagrams, electrical diagrams, torque specs, error codes, everything.

you can get guide from many sites.. i know few
error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches f unctioning, assemble, disassembly, complete refurbish, repair, installation every single thing is covered
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Sounds like either you did not connect the seat belt restraint wiring when the seats where put back in. This is a common problem. You will need to look under the seat and make sure that there are no loose wiring at all. The SRS is for the seatbelts.

the srs unit is located under the passenger side dash under the rug and under a metal cover.

Get yourself a manual. It will pay for itself the first time you use it.

where do i plug my wiring harness up at/

You will need to trace the circuit to find the problem, so I have attached a source of free wiring diagrams so you can do the troubleshooting, no easy answer for electrical issues like this, just careful diagnosis.
Follow this link.
http://bbbind.com/free_tsb.html

> Any suggestions or reference to free wiring diagram downloads??

It doesn't seem likely since most of that kind of material is copyrighted works. I think they would take offense to putting it on the web.

You might get some help (or even emailed diagrams) from a fellow owner.

Check here:

http://forum.miata.net/

Good luck-