Fuse blows in fuse box???

Measure ohms from power lead to ground lead. If zero ohms, radio is shorted.

 

Good idea

 

Are you using correct size fuse? I tried a 3 amp in my radio,,blew right away. Requires 10amp

 

Find another ground.

 

What radio are you trying to use? If it's a larger export radio or a radio with an rfx kit chances are the fuse/wiring in the truck isn't sufficient to handle the amp load.

 

He said it pops the fuse as soon as he connects the radio to power. No matter how big a radio is, the receive only draws a small amount of power. Now, if it were popping the fuse when he keys up, that's a different story. But this radio has a problem somewhere. He needs to use a multimeter and ohm the pos/neg as suggested. A cheap multimeter can be had for less than $10.

 

I didn't read it the way he intended I guess.