i have an le3105 15btu in rear and added 13.5btu to front best thing i did because the rear air with the ducting you lose alot of the cool i bought at camping world about 400 for unit and 100 for install but heres where i gets kinda tricky for the wiring yes it is prewired but if you hook it up and try to run both off the the prewire your going to pop circuit so i went to home depot got a circuit breaker like the ones in the house and handed it over to the camping world tech and he installed what it does it splits the leg so your airs and microwave are not on the same circuit but still had a problem when i took it to weekend warrior for service i was popping the circuit on the gen so they had to split the leg on the gen so anyway make sure you get the right configuration because when you need both and the circuit blows and you can only run one your right back in the same boat or trailer
