Amp won't turn on

[dflillemae 10+ year member]

Hey,

I had a car amplifier playing at a room for a while and having a jumper from +12v to remote to power it. Today, I moved the amp back into the car (it used to work there aswell) and i get no power. It's a Blaupunkt GTA4 amp.

I tried using the remote wire from my sub amp but still no power, but the green power light turns on and fades constantly (and it's not as bright as it should). Sub amp works fine with that remote wire though.

using a jumper from +12v and the amp turns on again and works but I don't want to keep it like that because I need to get this working via remote wire. I checked both, the +12v fuse and the amplifier fuse, they are fine.

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[tanpatnode 10+ year member]

I actually had a similar problem that took me a while to troubleshoot. Check the fuse from the 12V power right off your battery? I acidentally didn't move my battery terminal and I was running the wire hit a pieve of metal on the chasis and tripped the fuse. I couldn't figure it out because it was still registering .85V and not zero which is weird.

Also check all the fuses on the back of the amp and then check the remote behind your deck. It may have come undone while driving or a small tug on it has moved it out of the splicer. Hope one of those things words.

Also if its one of the fuses from the power, they're really expensive and you can't get them at AutoZone or any of those stores. I looked at 4 stores and I finally had to go to car toys because they were the only ones that had it. They costed me $15 for 3 and you can't just buy one.

Hopefully something helped with that. Also maybe a ground check? I have had a few different amps and they do that.

 

[dflillemae 10+ year member]

All the fuses are OK,

I have a fully functional and working sub amp, so i switched all the power, remote and ground wires from that amp onto the GTA4 and still the same story. I guess that eliminates the chance of wiring problems?

I don't think it's the remote wire because taking the rem from sub amp did not change the situation.

 

[dflillemae 10+ year member]

If i take the other end of the remote and connect it to the wire that's supposed to be the ignition for HU, the amp turns on.

I think the problem lies somewhere in the HU.

 

[frogcase2002 10+ year member]

Its just the remote wire. Just connect the remote wire into something that turns off with the car like windshield Wipers or something that does... hook a dmm up to your remote Wire and a ground and I bet its not 12.x volts

 

[dflillemae 10+ year member]

Yes, I found a temporary solution. Thanks!