turn on stereo via remote
Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=11468
Printed Date: August 24, 2025 at 3:29 PM
Topic: turn on stereo via remote
Posted By: jayrebb
Subject: turn on stereo via remote
Date Posted: March 26, 2003 at 6:55 AM
Ok, i have two channels left to play with on my alarm system, id like to set one channel up too turn on my sound system, anybody done this before and already have relay schematics?? im gonna be thinkin about it, but if any of you know this stuff really well please post your schematics...also, any ideas on somthin different I could do with my third channel, ofcourse theres, windows/sunroof,trunk pop,heated seats and car start, but id like some other ideas...i cant think of anything..
Replies:
Posted By: maximumboom
Date Posted: March 27, 2003 at 11:38 AM
you're going to have to use two latching relays which will use up both of your spare channels, and don't forget to diode isolate
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Posted By: auex
Date Posted: March 28, 2003 at 5:11 PM
What alarm do you have?
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Posted By: maximumboom
Date Posted: April 01, 2003 at 2:33 PM
If you use one channel to start your stereo..... wht do you do to stop it?.... this is why you need to use both channels.... a channels will not reverse the function
Posted By: benjammin1414
Date Posted: April 01, 2003 at 7:16 PM
check it out... all you need it 2 relays and an ignition wire. its called a momentary to constant relay.. 
have the 12vdc suply be your ignition wire. once you turn your car off everythign will turn off!!!
Posted By: djfearny2
Date Posted: April 01, 2003 at 8:35 PM
tha momentarty to constant setup does not work . tried it dont work. you have to see what your alarm can do. dei alarms for the fourth channel have three different settings. or four whatever they have pulse. 30 second latched, latched and latched controled by ignition. the only one of those four that can not be turned on and off is the lathced with ignition. now you have to see what alarm you have and let us know or email me personally cause giving the ignition power or red wire power on an after market radio can control a lot more things than you want. so diodes will be needed now email me personally and i will be able to help you. if you have a cheap alarm it will not have good changeble outputs so i would say your best bet is buying the directed electronics piece labled the 450 t it is a channel expander and what it does is take one of those outputs of your current alarm and add five. which are all adjustable for those four things., or atleast three of them but let me know or us know either way were are smart there is people who know what there doing out there
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Jon
Installer/Help Technician
---coral springs florida---
mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.
Posted By: benjammin1414
Date Posted: April 01, 2003 at 10:47 PM
dude it works.. ive used that momentary to constant relay for many things.
Posted By: go2pac
Date Posted: April 02, 2003 at 11:25 PM
This will do it...
https://www.go2pac.com/misc/miscdiagrams/latchrelay.pdf------------- Karl
Pacific Accessory Corporation
Mobile Audio Interfacing Equipment
Connecting You to Your Music Since 1976
Posted By: SmaDoc
Date Posted: April 24, 2003 at 4:06 PM
I would think it would be possible to do with jsut one relay, and a diode maybe (not sure how the diode would be wired up though) but as for other ideas on what to use the relay outputs for is, if it is possible to program the control unit to change how it uses relay outputs, you could use one to turn on lights, if you have any neon or strobes. My Control unit (delta pro-5005) is able to do the latched relay thing if I program it. I plan on using my aux 2 output to a relay, and that relay will go to different neon devices, right now I only have one neon thing under my hood infront of the radiator, and its hooked up to a toggle switch for now untill I'm done installing the system.
Posted By: ncollini
Date Posted: April 28, 2003 at 10:09 AM
I have the viper 550 and have the remote stereo on the aux channel, it no longer allows me to arm silently but...I don't really need that feature. I didn't install the alarm, so I don't know exactly how it was done, but hopefully this can help somehow.
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