For the benefit of others, it would be a good idea to do a "Fuse Inventory" in your RV, be it Motorhome, TT, 5-er, etc.
List the type and current rating of every 12 volt fuse in your power distribution panel.
Start at the battery and follow all the wires that spread out to provide power to jacks, awnings, slides, etc.
Look for inline fuse holders like this:
Open the cap and note the type and amperage, including it in your "inventory".
Also pull the stereo/Dvd player out of it's mounted position and check behind it. Mine has it's own inline fuse that's really hidden.
Once you have your Inventory look for a fuse assortment that has as many as possible of the fuses you use. If any missing just buy a small pack and add it to your kit.
Somewhat of a proven fact. When you have spare fuses you rarely need one. DON'T have one and the likelihood you'll need one increases exponentially.
BTW: The fuse holders like pictured were all red in my TT.