I will look into the slide control box! I have had the removable front kick panels in the kitchen slide off, lotta stuff under there.
The speaker thing is easy for ya, just put 1 on c and the other on a or b, which ever one is not the outside speakers then it will have front to back control on the inside. I got mine all done, love it! Still have some indoor speakers to replace.
We are itching to get out also! Least you got to use yours already!
15' Coachmen apex 288bhs
10' crossroads zinger (sold)
09 rockwood roo 21ss (sold)
08 dodgeram current TV