Anyone understand why stereo fuses keep blowing on an '01 Lexus ES300 after an amp install?

Question

I was installing an amp/subs in an '01 ES300 last night using the factory radio with a stepdown converter. I tapped into the factory sub in the rear deck to get my low pass signal. I ran the battery cable through the firewall, and I also pulled the factory cd player out, and connected my remote wire to the GREY wire in the harness after metering it with my dmm to check and see if it's an accessory wire. Now even with disconnecting *everything* I installed, the factory cd player will not come back on. I keep trying to replace the 20amp fuse under the hood and it keeps popping. I've checked for pinched wires and can't find any as well. I pulled the glove box out to access the factory amp and when I pull the 3 harnesses off the amp, I can put the 20amp fuse in and the radio will turn out (granted no sound of course), but when I plug back in the amp harnesses, it fuse pops... sounds to me like somehow I might have blown the factory amp. Any ideas??

Answer 1

there is only one reason fuses blow. that's too much current .
first check the wiring for a bare metal contact (grounding) and second you might step up to a 25 or 30 amp fuse... dont make a huge leap though because you could end up frying the circuitry in the device .

Answer 2

sparks popping out...theres your sign...unfastened twine interior the container . did it have a 10 of 15 amp fuse from production facility? in case you place great radio and amp in it could b too great for the wires

Answer 3

take the car and all the stuff that you pulled out to the local stereo ''dude'' installer person and get your stuff straight ---- you are not going to find the short in some simple wire (( you already tried and botched that and pulled more out the dash and fire-wall)) NOW pay the $$'s and get some pro assistance and fix the stereO and be done and listen and enjoy the music box.....