Wiring stock HU to sub and amp

[waterstone 10+ year member]

I bought a new sub and an amp. I don't want too buy a new radio. How could I wire this sub and amp to a factory Head unit since there is no RCA out on my Head Unit.

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[jco1385 5,000+ posts]

line out converter. look it up

 

[destined2race 10+ year member]

go to a local audio store or best buy or something. You want to get a line-out converter. This will have 2 sets of speaker wire which is usually best to hook up to the rear speakers. That way you can fade it to the front if you ever wanna turn ur sub down. You can do this behind the radio if you want to have ur rca's up there, or you can tap into your rear speakers(if there accessible)from your trunk. pretty easy to do if you have some exposed 6x9s or something in your trunk.

Then again not sure what kind of vehicle you have.

Either way grab a line out converter and that will transfer speaker wire input into rca output. Grab some self tappers from a hardware store or if you already have them to get a good connection.

 

[waterstone 10+ year member]

Using a line out converter on the rear speaker wire, will this mean I will then need a crossover so no high frequencies reach my sub.

 

[jco1385 5,000+ posts]

Using a line out converter on the rear speaker wire, will this mean I will then need a crossover so no high frequencies reach my sub.

if you have a mono amp, it should have a LPF built in. this may not be the case for all amps though. what amp?

 

[waterstone 10+ year member]

Well I think my amplifier have a LPF, I will check that later, if it as one, I will just need to adjust it to the right frequencies?

 

[jco1385 5,000+ posts]

something like that. just set it up as you normally would if you had RCAs (which you will have with the LOC)

 

[waterstone 10+ year member]

Ok thank you, if the amp does not have lpf, I will come back here.

 

[waterstone 10+ year member]

Where will I connect the remote wire?

 

[jco1385 5,000+ posts]

to the accessory wire (key-on) on the HU if it doesn't have a remote wire.