Identify this wiring harness:

[TSO]

It's on the left side between the seat & fender... I'm looking for a spot to mount a 12v outlet, was going to run a wire, but figured I'd use this if was a power lead.

Thoughts?

[rwork]

Not sure, but that could well be the seat safety switch. If so, I'd pass on that one. Might affect ability to complete ignition circuit.
I'd look for the wires going to the rear light or rear receptacle.

[joemd11]

My R3039 has a wire harness on the right side of the seat that is unused. Don't know what it is for. I think if I ever add some lights that I'll just use the 7-pin connector for the trailer plug. That way I won't have to splice into any factory wiring.

[mangus580]

I have a wiring diagram I could scan in - not sure it will help. What color are the wires?

[the old grind]

If you're in doubt, running a wire isn't so tough. A diagram should show the best place to tap (electrically), other than location alone. Match the fuse to the wire gauge, .. both to the load. If you use a std auto-cig lighter 'outlet' put it in-line or where replacement will be easy, they can be fragile. Be sure the lead to your accessory won't be a trip point if you hop on & off a lot. (Put the socket near the accy's mount.)

A lot depends on o'all use, too. If this is for a winch and not just a radio, using a particular plug/socket might be wise to handle high current, last the longest, and IMO too, a 7-wire trailer plug/socket wouldn't be over-kill. You can buy or make up adapters for other plug types.

[TSO]

I have a wiring diagram I could scan in - not sure it will help. What color are the wires?

I'd love to see the diagram if/when you get a chance.

Good point T.O.G.

[boomer632]

Here is where I put mine.. mostly used as phone charger. Has blue LED inside socket.. matches tractor nicely.

[mangus580]

If you look in my R3039 Mods thread, you will see how I am powering aux wiring. Basically I have a snowplow type solenoid under the hood by the battery. That is controlled via a wire from the key. I have a 30 amp fuse between the battery and solenoid. I then have a 6 outlet fusebox under the dash that has power coming from the solenoid. This gives me 6 key controlled circuits to work with, using the same fuses as the tractor. (guess I only have one pic from the project...)