Head Unit won't power up

[solrighal 10+ year member]

Hi folks. Went out to the shops earlier and stereo working fine. Getting back into the car after the shop the head unit doesn't start. The amp & sub are bothe getting power. In fact, even with the key removed from the ignition the amp and sub remain illuminated. Anyone got any ideas? Got a long trip planned for tomorrow so I need to get this issue sorted tonight if possible.

Gordon.

Click to read more...

 

[West]

Check the car's fuses.

 

[skylineTT 10+ year member]

Check the car's fuses.

This.

Also, your amp being powered while the car is off means that the remote wire is getting a constant 12v signal. Either it is tied into the wrong wire at the head unit, or to the wrong wire at the fuse box. Was it professionally installed?

 

[solrighal 10+ year member]

This.
Also, your amp being powered while the car is off means that the remote wire is getting a constant 12v signal. Either it is tied into the wrong wire at the head unit, or to the wrong wire at the fuse box. Was it professionally installed?

Allegedly it was, yes. I did some of the recent stuff myself but the head unit is a couple of years old now and was fitted by an alpine dealer.

Anyway, I disconnected the negative at the battery, reconnected it and voila! All's well. Something's wrong though eh?