buccicone

I can't seem to figure out a dead short when I power up this radio & amp. I enter the code and it briefly displays a radio station and immediately triggers a short and blows #21 fuse. Don't know if it is the radio or Amp or both. Any guidance would help. Which buss on the CE panel are the radio wiring connected?

ammonman

I suspect it is the amp. It gets power from fuse #21. The head unit gets power from the 30 bus via the ignition switch.

Mike

Ducman82

and we are talking stock stuff right?

buccicone

Stock Original.

Ducman82

could be a bad wire/chafe

Michael T

I would try to power up the amp with a jumper and see if that is the issue.

buccicone

Got power to te amp. At least the wiring has 12Volts and memory voltage without the key. How can I manually trigger the amp?

ammonman

Apply 12V power to terminal #3 of the amp.

Mike

buccicone

Which is terminal 3?

ammonman

The power connection on the factory amp is on the same side as the round DIN plug connection. There should be one large brown wire (ground) one large red wire (continuous 12V power) and one small red wire (12V power on signal from the HU.) Apply 12V to the small red wire to switch the amp on.

Mike

buccicone

Will try that.

buccicone

Hooked to external power supply. Nothing seems to be happening. No buzzing, hum, sparks, quiet. Again, when I enter the radio code it blows the #21 fuse. All hooked up before the radio code is fine. Got the 12 volts at the passenger seat connector to the amp with the HU plugged in. Is the DIN plug just for audio or is it for triggering something after the radio code?

buccicone

Bump.

ammonman

When you had the amp hooked up to power on your bench did you jumper from the 12V main power connector to the 12V "amp on" input? The amp has to see constant 12V on the "power on" terminal (small red wire) to keep the amp switched on and drawing current from the main power connection. I would rig up a momentary switch between the main power in to the amp and the "amp on" terminal. A fuse inline with your power supply would be a good idea unless your power supply output is fused to the same current as fuse 21 on the CE.

Mike

buccicone

Yes, jumped the "trigger 12V" to the main 12V. Nothing happened. Already ordered aftermarket radio from Crutchfield along with 4 speakers. Original speakers shot. Just curious to find out which OEM component is bad and shorting.