I just installed the Ryco system and am very happy with it (but I didn't know about the potential moisture issues. I'm a desert rat at heart but never turned back because of a little rain on the bike).
This is where I put the dash turn indicators and VM, copying
@Lil_Steve . Both are lit because the Ryco has emergency flashers. They're very bright, I think they'd be hard to forget although they're self cancelling. The green LED grommets fit the LED elements loosely so under drill them so they'll pinch down on the LED elements.
Look closely at the photo below, it shows the LED elements are vertical, I would have picked horizontal and I thought I did. The lenses have several white bars and I set them horizontally but they aren't the element. Look at them closely (in person, not here and lit) and you can see the single LED element is at right angles to the white bars. If you want 'em horizontal, position the bars vertically.
I used a Harbor Freight step drill bit to drill the holes in the front facia, the 3/4" size is a perfect fit for the grommets + LEDs (very tight but secure forever). Note that it's a very tight fit though - the directions recommend warmth and lube. I heated the area with a drop light and used wheel bearing grease for lube. That may be a long term mistake, the grease could kill the rubber grommets. Doing it again, I'd use liquid soap or something less toxic to rubber/plastic.
Running lights (optional, you can opt out, which may be better - as is, you have to watch to see them switch from low to high - OFF-ON-OFF-ON is more attention getting but then you lose the daylight running lights).
Turn signal lit
Side LED location. You can see the horizontal bars here but they aren't the element, it's vertical.
ETA: The Ryco template for drilling the front facia puts the 3 LEDs together, facing forward. Steve recommended putting one LED facing to the side and I did that for two reasons 1. the obvious side visibility 2. The center position is somewhat obstructed from behind and I wanted to avoid that. I tried to remove the plastic panel on the back to see what's back there but there's a hidden phillips screw that's inaccessible with the radiator in place - so NOPE. I also moved the outer LED (of Ryco's template) 3/8" further out than the template is marked for better back side clearance.
Photo of above - the left/outside element is 3/8" further to the left than where the template suggests. If you decide to put all 3 LEDs facing forward, this might not work because I don't know if you can move the center LED without back side interference (to center it between the left and right LEDs).
The signal stalk is pretty crude IMO but I'm sure it's what's available off the shelf. It doesn't interfere with my knee but I'm not tall either.
I have the Honda bumper, necessary for the Warn winch so that's what you're seeing in the 2nd, 3rd and 5th photo.