Ignition Power Relay

[Decipha 10+ year member]

I would like my HU to stay powered after i removed the key and i don't want it to go off until i hit the power off button on the HU... i have an idea....

what if i ran a relay from the battery going to the ignition wire on the HU that was switched by the remote lead?

That way when i turned the key on the HU would power up and when i took the key out it would still have power until i turn the HU power off, then it wouldn't come back on until i turned the key again? Do you think this would work?

The only reason i can see why it wouldn't work is if the remote lead is powered by the memory wire inside the HU.. otherwise this should work, correct?

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[Slody4Futbol 10+ year member]

http://www.the12volt.com/relays/page5.asp#drto

 

[jsloan10 10+ year member]

Just split the constant power wire into the 2 power inputs on the HU, then just shut off the HU manually. Done it before, worked good.