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Car Audio Help
Wiring, Electrical & Installation
Switching audio speakers when trunk opens
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<blockquote data-quote="jondavidf" data-source="post: 8667386" data-attributes="member: 676420"><p>Hey all!</p><p></p><p>Ok, so I've been out of the car audio and electronics game for just a bit.... I used to be an installer at Circuit City if that tells you how long it's been, but I do remember some fundamentals.</p><p></p><p>So here's my story: </p><p></p><p>I am building a small system for my 16 y/o son's '98 Altima. I plan to put a single 12" sub in a rear facing box with rear panel that will snug up against the back seat. I ended up with a couple extra pairs of speakers (don't ask...) and am thinking of mounting them on that back panel. The issue is I really only want them to be on when the trunk lid opens. I figure I can use an amp (audio source) and relays to reroute the audio from the internal speakers to the ones mounted in the trunk. </p><p></p><p>This is my idea:</p><p></p><p>Use a normal 5-pin relay to switch audio from an internal speaker (Speaker #1) to an external speaker (Speaker #2). The power source for the relay will be tied to a hood pin switch mounted in the trunk. Then I'd wash, rinse, and repeat for each speaker I want to switch. See attached image for a visual of the wiring setup.</p><p></p><p>My questions are:</p><p></p><p>1 - Do you think the above would work?</p><p></p><p>2 - If so, would I get noise through the audio by running the sound voltage through a relay?</p><p></p><p>3 - Is there anything like this already available on the market?</p><p></p><p>4 - Would there be any issues if I just switched (through the relay) the positive for each speaker while running the negative straight to the amp?</p><p></p><p>Thanks for the help!</p><p></p><p>Jon</p><p></p><p>[ATTACH]4105[/ATTACH]</p></blockquote><p></p>
[QUOTE="jondavidf, post: 8667386, member: 676420"] Hey all! Ok, so I've been out of the car audio and electronics game for just a bit.... I used to be an installer at Circuit City if that tells you how long it's been, but I do remember some fundamentals. So here's my story: I am building a small system for my 16 y/o son's '98 Altima. I plan to put a single 12" sub in a rear facing box with rear panel that will snug up against the back seat. I ended up with a couple extra pairs of speakers (don't ask...) and am thinking of mounting them on that back panel. The issue is I really only want them to be on when the trunk lid opens. I figure I can use an amp (audio source) and relays to reroute the audio from the internal speakers to the ones mounted in the trunk. This is my idea: Use a normal 5-pin relay to switch audio from an internal speaker (Speaker #1) to an external speaker (Speaker #2). The power source for the relay will be tied to a hood pin switch mounted in the trunk. Then I'd wash, rinse, and repeat for each speaker I want to switch. See attached image for a visual of the wiring setup. My questions are: 1 - Do you think the above would work? 2 - If so, would I get noise through the audio by running the sound voltage through a relay? 3 - Is there anything like this already available on the market? 4 - Would there be any issues if I just switched (through the relay) the positive for each speaker while running the negative straight to the amp? Thanks for the help! Jon [ATTACH]4105._xfImport[/ATTACH] [/QUOTE]
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Switching audio speakers when trunk opens
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