Quick question on relays.

[Nico Koutouzis 10+ year member]

Hey guys I have a quick question. I cant move on with my build until I get the relays but im kinda lost. Anyways I have a pioneer avh 4300 and lots of accessories that need power such as tv's, headphones (car), an more. I plan on running a 10 gauge wire to this multi output distro block Tsunami TSFDB-14ATM Power Hub Distribution Block , Here is exactly what it will be powering.

-3 TV's

-Video Signal Amplifier

-Car Headphone transmitter

-LED control box

-Remote Wires for amps

-Reverse Camera

Now my real question is (since the g35 doesnt have a wire in the back that turns on with ignition, just a hot wire) I has going to hook up a small relay to turn on a big relay for all my accesories. The little relay will have the remote from the back of the headunit and will use the hot wire to turn the larger relay on. Now finally for the question. Do I need a second relay to run all these accesories? Or will a decent one flip the 10 gauge hot wire in the back using the remote wire from the HU and run all this power?

CN: I have a 10 gauge hot wire in the trunk. Will the remote wire from the HU give a relay enough power to flip it and run all those accesories^^^^^?

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[maylar 10+ year member]

A typical 12V automotive relay (Radio Shack) can handle 30 amps through its contacts and can be driven directly by the remote on your HU. I always recommend a reverse diode across the relay coil to protect the HU switching transistor from voltage spikes.

 

[dragonrage 10+ year member]

You absolutely MUST use a quenching diode (1N4001 will suffice - cheap and easy to find) across a relay. I recommend a transistor to drive the relay, but a remote wire may be able to drive a relay on its own.

 

[Nico Koutouzis 10+ year member]

uhhhhhh im sorry im new to all this relay stuff..... what r u guys talking about exactly?

 

---------- Post added at 04:37 AM ---------- Previous post was at 04:37 AM ----------

 

and where can I get this stuff

 

[Nico Koutouzis 10+ year member]

links/pics of what ur talking about would be awesome. Also can u solder 8 gauge wire to these things? (not that 8 gauge should be soldered like regular wire. I just dont have 10 and i have 8 so why not)

 

[dragonrage 10+ year member]

1/4" (12-10) Nylon Female Disconnect 50 Pcs. 095-304 for the power side, or get a relay harness that has appropriate gauge wire. The sense wire can be 16 or 18 gauge or whatever (and would use a blue or red terminal if not a harness)

Relays -- search for "diode"