d052057

My car is 1992 Lexus LS400. The radion 2 in the engine compartment keeps blowing my 20A fuse.
My radio (am/fm) is still on but there is no sound but no on tape cassette and CD. I have disconnected my Nak stereo, amplifier and CD changer and the antena (in the trunk) and the fuse keeps blowing.
I checked the cigarette light to make sure there is no coin falling into it.

I did research for soluction regarding this issue and I found out that there were alot of people run into the same issue but no solution published.
It looks like the Radion 2 fuse is hot all the times (When I have the key turned off and I installed a 20a fuse and it blows right away).
I would like to know the compoent that the fuse (Radion 2) connected to for trouble shooting, any suggestions or solutions.

Thank you.

paulo57509

I don't know if a '94 is wired the same as a '98 (I would think they're both very similar). Radio No. 2 fuse is supposed to be switched 12v from the accessory part of the ignition switch. I don't think it's supposed to be hot with the key off.

Your best bet is getting a hold of a wiring diagram and tracing the wires downstream from Radio No. 2 fuse

d052057

I found the issue with my car. Thank you for your input. The issue is that the fuse (Radio 2) is connected to the Nakamichi amplifier using 20A. The radio, tape and CD stereo is connected to Radio 1 using 7.5A fuse.
My previous statement that I have disconnected the amplifier and the fuse is still blowing. This is my bad. The box on the top the CD changer is NOT THE AMPLIFIER. The amplifier is located on left (driver) side inside the trunk near by the gas tank. It says Nakamichi on it. When I disconnected and I put a good 20a fuse back in the fuse box and it is no blowing any more!!!!!!

Somehow the Nakamichi collected water and moisture in the trunk and it got rusted and it is no longer working (shorted) and that is the reason why the Radio 2 fuse got blowing all the times.