Hello Jeffrey,
I had a similar trouble with my previous 75.
First what i did is i bought connectors off Ebay (see the link)...
https://www.ebay.co.uk/itm/10-Kit-2-Pin-Way-Waterproof-Electrical-Wire-Connector-Plug-BTSZUK/281856776777?epid=2095306935&hash=item419ff91a49:g 
0AAAOSweuxWToMZ
So i changed the connectors under both seats (which demands unbolting both seats, maybe 1.5 hours job).
But no success. After that i changed the airbag modul which is under the handbrake and that solved my issue...
Let's wait for someone else with some more ideas.
Cheers