2 Amps 1 X over and 1 remote wire

[Grinder1989 5,000+ posts]

I only have one remote wire but 3 things to turn on. Should I splice into the remote wire or do straight runs from the battery with switches? Thanks Guys.

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[audioholic 5,000+ posts]

With 3 things, you should be safe. Any more things than that and you start to run the risk of burning out your head unit's remote turn on output. Above 3 things is when I recommend going to a bosch style relay.

 

[Immacomputer 10+ year member]

With 3 things, you should be safe. Any more things than that and you start to run the risk of burning out your head unit's remote turn on output. Above 3 things is when I recommend going to a bosch style relay.

Or using the ACC line that turns on the headunit.

 

[audioholic 5,000+ posts]

Or using the ACC line that turns on the headunit.

That would turn on everything every time you turn on your ignition.

 

[97gmcsierra 10+ year member]

I only have two amps, but to be extra safe I wired in a relay to turn them on. you can never be too careful, It should be ok though.

 

[Grinder1989 5,000+ posts]

It made a loud *pop* noise when I did that. Not doing that again, the 3 remotes will be ok. If not, I'll just punch Audioholic. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif J/k Thanks for the help man.

 

[audioholic 5,000+ posts]

Oh shit, hope it works then!

 

[Immacomputer 10+ year member]

That would turn on everything every time you turn on your ignition.

It's not like that's going to harm anything just sitting there on unless you have problems somewhere else. I used to always wire everything to that. I started doing it when I first got into car audio to get rid of the turn on thump I was having.

 

[audioholic 5,000+ posts]

It's not like that's going to harm anything just sitting there on unless you have problems somewhere else. I used to always wire everything to that. I started doing it when I first got into car audio to get rid of the turn on thump I was having.

Sure you can do it, but imo its a cleaner install to only have your stereo components come on when you actually have there stereo system on. *shrug* A bosch relay costs less than 10 bucks, well worth the investment to any car audio diy'er.
Cheers.

 

[coolest user 10+ year member]

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When using a Bosch relay, do I have to use a diode? Or should I just hook it up without one? Here is a quote from something I was reading...

Quenching Diodes:Anytime that a relay coil is driven by a circuit that is not specifically designed to drive a relay, you should use a quenching/suppression diode connected in parallel with the relay coil. The diagram below will show the connection of the diode. Initially, you may think the diode serves no purpose because the voltage applied to the relay cannot pass through the diode. This is true when the relay is energized. The diode comes into play when the power source is removed from the relay coil. When power is applied to the relay coil, a magnetic field is created and energy is stored in the coil. When power is removed, the magnetic field collapses causing a reverse voltage to be generated (it's called inductive kickback or back EMF). The back EMF can easily reach 200 volts. The diode will absorb the reverse voltage spike. This voltage, if not absorbed by the diode, will cause premature failure of switch contacts and may cause the failure of power switching transistors. You can use virtually any type of rectifier or switching diode (i.e. 1N4001, 1N4002, 1N400x... or Radio Shack part #s 276-1101, 276-1102, 276-1103, 276-1104).

 

[energizedsbs 10+ year member]

get one with a built in diode