On 07/23/2019 08:59 PM, Xeno wrote:
The easiest way is to add one of these;

https://www.milford-auto.com/product...g_harness_kits

Takes care of any potential problems, and bulb failure sensors are but
one potential issue.

AOC to the contrary there isn't a damn road to Australia. And, as I
mentioned in the original post, if there was a neat plug'n'play solution
available for that model the job would have been done a long time ago.

In theory the Yaris isn't supposed to be pulling a trailer, at least
that's the story in the US. On the forums the Canadians say their owner
manuals say a maximum of 500 pounds.