Ok i just brought home a 1994 Jeep Cherokee Sport 4.0l automatic tranny. I got it and the radio doesnt work.. i pulled it out and i saw the grounding wire wasn't in the wireing harness.. so i put it on it.. i put it back in dash and i hit the power button and i see a very dim green light that almost looks like a bar on the top left.. no sound or anything just a very very dim green light at top left.. thanks

 

make sure that grounding wire is really in the plug mine kept falling out before I went aftermarket

 

Check the ground again. If you're not sure, take a wire with a couple clips and ground it good, then touch the frame of the radio. If it lights you need to re-locate the radio ground.

 

^^the foolproof way to of determining bad grounds

 

Tested the ground. still no luck anything else you can thing of.. maybe the fuse is blown i was thinking but it has a very dim light so what else could it be?

 

if you're ground is good,and you see dim light,maybe there is a short inside the radio.