Today was ghetto mod # 8,569.

I'm probably the ONLY guy in LT land that has resisted mounting my phone in some fashion, but bluetooth music on my new Schuberth C5 is finally my motivator. But how...
Well, there's company called Rokform that builds robust cases for smart phones along with interesting mounting options. I already had one of their windshield suction cup mounts - and surprisingly - it has held up very well over the past couple of years. The only issue is that it needs a flat and smooth surface to hold tight, and those are hard to find on the LT. But wait! The polycarbonate "lens" covering the instruments is flat! ...and the suction cup fit right in the middle near the top with minimal intrusion covering only a small portion of the speedo and tach. Problem number 1 solved. (I also liked that the "lens" is somewhat flexible, adding some spring to the mount and helping to dissipate hard shocks to the phone)
Next up was a way to supply power to the phone so I could keep it on all the time and the screen brightness turned up to max, allowing me to easily touch the mute button or select different tracks. I could have run an external power cord from the 12V outlet located on the lower portion of the fairing - but that would have been awkward and besides I HATE power cords just dangling. Always an accident waiting to happen.
Luckily there's power to the dash light - that I swear I've never actually used in over 20 years of LT ownership. It pops out easily with a light prying motion in the slot on the left side. All I would need is a couple of blue taps to splice into it for a positive and negative lead for the:
Dual outlet Bluetooth panel mount! 
...but once again where to find a flat spot to mount it? Right next to the dash light!
There's just BARELY enough clearance to mount it here since it needs a lot of depth, and with a little gentle bending of the positive and negative posts on the end it will fit. CAUTION:
Locate the spot you're going to drill with the hole saw VERY carefully. You're only going to get once chance to do this once without messing up! You're going to have to locate the hole VERY close to the light housing cutout in order to allow the panel mount to extend up into the "bulge" area of the dash. I used a 1 and 1/4" hole saw since that's what I had on hand, but would have preferred one a little bit smaller. 1" wont work since the diameter of the USB outlet is about 1.13 inches. 1 and 1/8" inch should be perfect.
Once the hole is drilled the rest is easy assembly. Oh yeah, you'll need to buy a cheapo angle drill attachment ($20.00 on Amazon) in order to drill the hole.
I used a 9" angled and flat cord from the USB outlet to the phone for a tidy look. Hopefully the following pictures are self explanatory, but if you have any questions let me know.