Possible new slx 16xrb owner with ?'s

[JeepGuy]

hey all. looking into a used 14' Jayfeather slx 16xrb, we currently have a 08 fun finder 160x but are looking for more/seperate sleeping area. We tow with a 07 unlimited rubicon and just picked up a 98 grand cherokee 5.9 so we cant get a larger trailer.(we had planned on a class c rv but cant afford what we want) what im wonder is does anyone have this model? its missing some things our current camper has such as stablizer jacks, outside speakers, outside grill, outside water hose. now the jacks are no big deal can add them one thing we did use alot was the outside hose, does anyone know if the pex lines are some place i can get to so i can splice in and add a outside hose?And does anyone know if the units are pre wired for outside speakers and just no installed, i know the better one with speakers has a different radio. Anything current owners dont like about this unit?