I need to know what size fuse goes in the fuse panel in the # 17 space

Those empty relay spaces may be for accessories. If everything is in working order than no need for relays.

Find a web site that has a fuse panel diagram there are some here but i've had better luck using google when you find the right year make and model download pdf file you want take it out to the car so if on desktop print them its usually a pic of the panel and a list. Each location is numbered and what its for with correct fuse size. when you are looking at the fuse box some empty spots have tabs of metal in them usually thats where a fuse goes they will be numbered slide in fuse between metal tab any size pair of needle nose pliers will help with this task. check your referance sheet 2 an 3 timers to ensure the right size fuse in the right spot..with that being said if you have a fuse that is blowing every time u can put in the next size up if its a 15 try a 20 if that blows go 25 ...i have not had to use any more then 10 amp over what it called for most of the time 5 more does it ..of course the dealer wont recommend this most shop will say its ok but any thing over 10 amps you should the electrical system look at by a reputable shop

did you check all fuses? yet? in both boxes?
first off the schematic (516pages) is here.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service
so you look any time and see why.
ill direct you to the pages.
the radio too can be complex. ext. amps. ill assume its 100 % DEAD
ill do radio dont play in run pos. of ign. sw., (easier)
there are 3 Cherokees, gas, desiel and export. so> and ENGINE! size
so every page is repeated 3 time. you sort that
6 fuses involved here, just for the freaking radio
but fuse 17 is the key fuse. see that. and the marking
RUN-ACC A31 , in JB (bad A31 power feed is the prob)
fuse 17 marked, X12-16rd/wt
fuse 18 kills windows. and is A31 feed too.. hummmmm
are both fuses blown, might check that..?????
so we look now at A31 (fuse 17 and 18 measure 0ohms with meter)
A31 goes to the Ignition switch, USA RHD GAS car, is most
complex and the first section of the switch has a pin3 to pin4
jumper. this jumper allows A31 power feed to reach the things
you find are dead. see page 8w-10-15 or pdf 35

see pdf page 240 for radio wires.
so what is wrong, i dont know,
but my voltmeter will tell min in 1min flat
got 12v on the A32 feed?
yes, then F17 -18 blown.
if not the jumper is bad in the ign. switch

The fuse panel should state which size goes in which terminal. If the panel or sticker is missing, refer to a haynes or bentley manual

http://ww2.justanswer.com/uploads/BOBCAT5544/2009-10-01_235640_1995_uh_fuse_blocl.JPG
good luck!

you may be able to use a 17 in rim but will need a smaller tire(sidewall)
formula: 185/65/15(maybe stock size)-195/55/16-205/45/17
if your rim size goes up-the first number(circumfrence)goes up 10/second number(sidewall size)goes down 10
you may look at a 205(or 215)/35(or 40)/17
i had a 205/45/16 on my b13 and still had room
either that or you shve the fender wells to make room

Use fuse size listed on fuse panel, panel should show diagram and fuse sizes. Putting a larger fuse where it does not belong could result in melted wires.

I have taken a picture of the fuse panel diagram and can send it to anyone if given an email address. Photo is to large to upload here and I don't know how to shrink it!

# 9 is ABS, EDL, TCS, and ESP power, it's a 5Amp fuse
#17 is a dead terminal nothing uses this spot.

If your fuse panel has a cover it will have a diagram on it telling you what size and what each fuse does, The fuse panel will be labled telling you what size fuse goes in each spot and what it is for.