Thanks for the replies;
MacEFL, Some weeks ago I requested from Jayco their diagrams for each side and bottom of trailer. Their response was a polite 'no' since it is still under warranty, ( guess they figure anyone who bought one isn't as bright as the folks who put them together!) They told me to go see my dealer. Phoned the dealer, two hours away, and they said ... 'what?". I'm sure there is framing in these prebuilt walls, guess I'll try and find them with a stud finder or a straight pin. The unit is a Superlite 5ver, 30 ft.
19H F250, I agree with putting pressure on the receptacle when unplugging. If I don't find a solid piece to anchor at least one fastener I may glue for now and when the unit goes off warranty if the receptacle becomes loose I would drill right through to the outside and use two white coloured chicago bolts to secure it.
Poohbear, I don't really want to put it on the front of the cabinets. There already is a plug under the top cabinet but it really isn't very functional as it dangles down in the middle of the counter, so i don't want to add another there. The additional outlet/circuit is so I can have two 15 amp circuits on the counter to handle a toaster and kettle at the same time.
Thanks for your input and if there are other ideas please share.