Little help with vehicle audio?

[Kevin B.]

Putting a new deck in the wifes' truck, and I forgot to look where the amp jacks were plugged into the old deck. I've got two wires with RCA connectors, one has clear insulation and the other is blue. The new deck has four RCA jacks on the back labeled "amp preout" - left front, left rear, right front, right rear. I can't get any sound out of her sub in any configuration of connectors and jacks.

The old deck had six RCA jacks - LF LR RF RR and a pair labeled SW left and right.

Halp?

 

[dutchman]

Did the deck come with a wiring guide?

 

[moab_cj5]

@bryson

 

[boogie_4wheel]

Is the amplifier for the sub turning on (acc source is connected from the head unit)? This will be a blue wire (or is it a blue/white, going off memory) that is used to turn on the amp when the head unit is on.

 

[glockman]

Some head units require you turn on the pre outs in a soft menu. Most Pioneer HU's also have a sub pre out level, it might be set to zero.

 

[Kevin B.]

Is the amplifier for the sub turning on (acc source is connected from the head unit)? This will be a blue wire (or is it a blue/white, going off memory) that is used to turn on the amp when the head unit is on.

Ooooh... there was a blue wire that I snipped. It had a tag on it that made me think it was irrelevant. I'll reconnect that and see what's what.

 

[Pike2350]

A thin blue wire is usually the power that turns on the amp when the head unit is on. Sounds like this may be the problem

 

[DesertRam]

We recently did this for my daughter's truck and had to "hotwire" the truck's antenna wire to a power source to power the amp.

 

[Cody]

Ooooh... there was a blue wire that I snipped. It had a tag on it that made me think it was irrelevant. I'll reconnect that and see what's what.

Bingo. That should be switched 12v (either from blue/white behind the deck... Or you could do red which should be ignition). That tells the Amp to turn on

 

[Kiel]

Remote wire