I have a B&S XR professional 6.5 HP 2022 (130G32-0125-F1) on a chip and vac that won’t start. There’s a loose wire that the rodents may have caused but unsure where the other end is or where it should lead. Pic attached. Any help would be appreciated.

No pic's posted.
 
Can you describe where about the wire is located, if it's very thin/single hard strand, etc?
 
Did you pull the spark plug and check for spark?  I suspect you don't have spark.
 
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It’s where the model number and dip stick are.

Here is the picture.  I'm thinking oil sensor as there is no toggle switch.  

No oil sensor either just the loose wire.  

As your a new member, they won't let you post pic's for awhile.
 
Re the oil LEVEL wire (it's not pressure switch), if the oil level is low, it'll hamper spark.
Disconnecting it will disable it and allow for full spark.   
 
Adjacent to the flywheel, (under the pull starter) is the ignition coil. There's a thin wire
connected to it which is your coil KILL wire. 
Ground it, you loose spark.  if you disconnect it
you should have nothing to kill the spark- coil keeps firing..
 
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Can you find the wire looking at the parts diagram?
https://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/briggs-stratton/briggs-stratton-engine/100000-19z999-series/130g00-to-130g99/130g32-0125-f1 
 
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