I'll jump into this fray and add my "experience."
First, tried the GROM VLine unit. It worked...intermittently, like maybe HALF the number of start-ups, it would come up. Checked all connections, fuses, etc, no good. Too late to return this crap (to me, but others on the forum have had good luck with it).
Next, ordered and "installed" a Tesla style unit from a China place called TopNavi on eBay. Real PIA to get the unit seated all the way back to connectors. Virtually NO instructions. But, got it in after 3 glasses of wine (sorry and bad for me- I'm allergic to many beers). Turned unit on and everything works, including A/C! Go to snap in the side HVAC panels (which look very good out of the box), and the two side panels plus the main unit are TOO WIDE for the stock LX470 cavity. Tried backing out the head unit a bit to see if things would wedge into place, and it got closer, but still no good. I'm about 5 or 6 hours into this now, so I'll probably have to switch to boxed wine. Going to return this unit, and maybe try Phoenix or Teyes (or Rhino?).
Anyway- learned some things for from this failure.
1- installing the A/C "amplifier" is a little trickier than it looked to me at first. Couple of different orientations are possible, and space is tight in the cavity with all the wires
2- Google translate works on the Chinese text that is written on some of the wire labels, and can be helpful.
3- Don't forget the plastic clips that secure the top of the head unit and the side panels
4- On my next try, I'm going to remove the center console panel so I can get to the back of the cigarette lighter socket and replace it with a USB from the head unit for connecting my iPhone.
Anyway, most or all of you know these things already, but they were new to me.
I'd rather be spending this cash on my suspension.
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