Does the Bose system in a 2003 Yukon Denali have a fuse

Radio Fuse 15amp located in the under hood fuse box.

pull fuses or relay until current drop to 50mA and less.

ON THE FUSE BOX LOOK DOWN TO THE BOTTOM AND FIND THE FUSE THAT HAS THE WORD INFO WRITTEN ON IT AS ITS FUSE PLACEMENT AND THAT WILL BE THE 15 AMP FUSE THAT CONTROLS THE CD PLAYER BUT BOTTOM RIGHT AREA ,IT WILL BE THE FOUR RIGHT BOTTOM FUSES YOU SEE BELOW .

The Bose system is set up differently from other radios...each speaker has its own seperate power amp, so you have two connections to each speaker, the 12v power, and the low level signal...you can use a front speaker to plug into the rear wires and if it plays, you need a new speaker/amp...if it doesn't, you're missing power or signal for that channel...

Phone A GM dealership to find out, Evan the parts guys one you give them the serail number for it will be able to help you out,

dealer only !

03 denalis do not have one, Gm discontinued them in 03,

check your manuals guide book on reprogramming the radio and where would you find the fuse for the radio first check the fuse then reprogram if this information has been helpful please let us know good kuck

what fuse?

it may not be conected wright or some items may have been disconected when installed back ?