Tach oil light connection 50hp 2 stroke

I posted this on another board, so far no fix------
I ordered and installed a 6Y5-83540-05-00
PRO SERIES TACHOMETER with oil indicator(2 Stroke Oil Injection models),tach connection was easy, not sure about oil light connection. I extended the wires for the oil lights to the engine, there is square connector below the air intake that is not connected to anything. Is this where I connect? Do I disconnect the square 2 wire connector from the oil level sensor and connect there? Not sure. Thanks.
After that, this------
OK, I ordered the harness. Finally today, I had time to install the harness. I connected the harness connector to the engine connector that was under the air intake. Now when I switch ignition on, I get an alarm and no oil lights on tach. The oil tank is full. I tried connecting to the four place two wire connector from the oil tank sensor and I still get the alarm. The alarm sounds with key on engine off and with key on engine run. The oil lights never turn on. With the harness disconnected from the engine, the alarm does not sound. 50TLR built 06/06.
What am I doing wrong?
Anyone on here got any thoughts?