I have 3 in my 5er. One small one near the kitchen, another small one in the master bedroom & an industrial (one that you see in public buildings) size one in my external compartment where my 3rd propane bottle would be located if I had one. I guess I should add that I have another small one in the TV.
'16 Ram 3500 MC CTD Dually, 4:10 rear
'14 Ram 2500 MC CTD (gone)
'14 287BHBE (gone)
'16 North Point 377RLBH (current and hopefully last)