Thanks Jim,
At least you got yours set up to tow (and assume working).... I'm still working with dealership trying to get that RX330 tow harness pigtail.... They say they want me 100% satisfied with the purchase... Well let's just say I'm not holding my breath.
As a last resort I did find an after market OEM tow harness pigtail for the RX300, LX470, and Toyota 4Runner/Highlander/Land Cruiser on-line at etrailer.com for $13.70. I'm assuming it would make the connection for the RX330 tow connector. It just doesn't have that rubber grommet to plug that 2" hole it needs to go thru to go from inside to outside the vehicle.
It does appear that Lexus didn't plan this tow option very well which is quite unfortunate. But I do have to say, other then this I'm quite happy with the SUV... I hope that continues.
Anyway, thanks again for the info... I just still may need to contact the Waymire Group if I'm still running into problems to see exactly what they did to make it work.
Best Regards, Tom