I recently picked up a 2017 XL SD and absolutely hate the 4" screen. I've done some searching and found that you can upgrade it to the 8" SYNC system, but it's pretty pricey.... around $1800. Curious to know if anyone has done some other upgrade such as a Pioneer or Alpine touchscreen head unit. What did you go with, where did you get it and was the installation easy or hard? Trying to stay under $800 for this upgrade it at all possible. Any info you have to share would be greatly appreciated.