Wiring 12V Accessories

[5509433]

Hi,

With my current setup im looking to build a false floor to keep things hidden. I am in the process of building the floor but am also considering the use of computer fans.

I have googled the hell of out installing them and have found the correct way to do it using a relay.

However, I am unsure of where to get my power from.

I have read that is not a good idea to take power from the amp power cable in the boot (trunk). I have an terminal with a grub screw connected to the battery for my amps power. Can I simply unscrew the grub and use a smaller gauge wire for the fans? OR have I got to get a new terminal just for the smaller gauge wire? If I did that, im unsure of where or how I am going to connect it to the battery as all the the slots have been used.

Also, the grounding cable. I have my amp grounding point on a anchor bolted to the side of the spare wheel well. I have been told not to use that for ground either. So am I going to have the drill another hole for another anchor point for my fans?

If I am going to have to do that, can any tell me where I can get a smaller gauge grounding point? All I have seen are 4 gauge, and that seems overkill.

I will probably be connecting these to a barrier strip as so I can have more connections on the future, but I just need to know the best place to connect the initial power cables as so it does not interfere with the audio.

I hope I haven't bored you! Thanks for any info you can give me!

Lewis

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[CrossoverOre 10+ year member]

I have used relays to power up all kinds of things using the amp power and have not had any issues with that.

 

[5509433]

Did you take the main power cable to a block in the boot first and then split the power from that?

 

[CrossoverOre 10+ year member]

ran it straight off the amp itself

 

[5509433]

If that is the case, I have gone and ordered a fused and not fused distribution block. Thanks for the help!

 

[bradl79 10+ year member]

I used relays also for the fans. From the power wire from the amp and ground and putthe remote wire on there and used the power wire from the fans to the remote wire connection so the fans dont stay on