For whatever is worth...
I Don't know this particular set up, but if you want full protection for your LX470 I will strongly recommend you to buy the VALENTINE ONE RADAR DETECTOR. You can also add the remote feature so outside people don't see it at night when in alerting mode.
THIS IS THE BEST PROTECTION MONEY CAN BUY 360 DEGREES.Plus you can always take it and use it in a high performance car remenber that the LX470?Land cruiser is electronically limited.
Visit the web http://www.valentine1.com/ it even tells you where and how many are pointing at you. I had passports and a escorts since 1986 back then they where the best. But after the company split the partner with the brains open his own company and develop VALENTINE.