Radio drawing power when off

[95rangerstx4x4]

I have a 95 ranger stx/splash and the factory radio is drawing power.when truck is keyed on the speakers make a thump sound.I found tht taking out the jbl system fuse under will keep it from drawing power.any suggestions on wht my problem is.thanks yall!

 

[nuclassic]

we need details, it sounds like you have more than just the stock setup

 

[95rangerstx4x4]

Well its a stock hu now but a month before this started I had a aftermarket in.all speakers are stock no amp installed.nothin rewired all just like it came from the factory

 

[4x4fun]

did you cut any part of the wiring harness? if you have the jbl system, did it have an amp?

 

[95rangerstx4x4]

No i didn't have an amp installed and I didn't cut any wires but i found a box behind the hu in the dash tht the speaker run into.I'm guessing thts the jbl system tht I didn't kno I had till I found tht fuse.but I'm thinkin thts the source of the problem