Greetings from Oz
I too had the problem as my utility was brand new and i didn't want to go cutting into the wiring harness.
SO after some research I found the Volo site and they make a hydrogen chip for my model ute.
I ordered one and it was here in 3 days.
The service from the company has been great and so far the chip is working and doing its job.
check them out as it might work for you too?