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I know DEAD HORSE.. but if you feel like it,.. Help me with Class A/B vs Class D.
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<blockquote data-quote="Chromatic" data-source="post: 8222397" data-attributes="member: 659121"><p>[quote name='bbeljefe']You can power the fan entirely from the amplifier&#39;s power inputs, using its battery & negative plus the remotes turn on wire. You can use any readily available 20 or 30 amp SPST (single pole single throw) automotive relay like <a href="http://www.parts-express.com/12-vdc-automotive-5-pin-relay-spdt-30-40a-bosch-type--330-073?utm_source=google&utm_medium=cpc&utm_campaign=pla" target="_blank">this on from Parts Express</a> and, I&#39;d fuse it at no more than 3 amps.</p><p></p><p>The head unit remote will be disconnected from the amp and connected to the relay&#39;s coil (pin 86). Then, the other end of the coil will go to ground (85). The fused battery positive will go to the relay&#39;s common lead (30) and then, the normally open relay lead (87) will go to both the fan positive and the amplifier&#39;s remote terminal.</p><p></p><p>And here&#39;s a diagram of the relay connections:</p><p><img src="http://www.reuk.co.uk/OtherImages/5-pin-12V-automotive-relay.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p><p>I&#39;m about to run to the store to grab a couple relays (both for when I pull my headunit to put the rear view camera in, the new "special" kenwood cord to run my Navigation off my phone,.. and to wire up the relay you suggested to isolate and create a proper ground for the headunit.</p><p></p><p>But let me get this perfectly straight with the relay I&#39;ll be messing with today.</p><p></p><p>I run a fused wire (3amp or less) to the 4gauge power wire on the amp (from<strong><u> terminal 30</u></strong>)</p><p></p><p>I pull the remote wire from amp, and run it to<strong><u> terminal 87</u></strong>,.. then I split that wire two more ways and one goes to amp remote in,.. and other to Positive wire off the fan itself.</p><p></p><p>(<strong><em><u>The diagram shows two 87&#39;s.. so I do that, or I run 87a to either the remote in on amp,.. and 87 to + of fan (or vice versa)</u></em></strong>.)</p><p></p><p>I run the remote wire from headunit into<strong><u> terminal 86</u></strong>.</p><p></p><p>And.. finally I just tap into the 4gauge ground on amp , run a wire from it to<u> <strong>terminal 85</strong></u>,.. and also tap that wire to run to the ground of the fan.</p><p></p><p>I&#39;m just trying to make this straight mostly on the wires I&#39;m having to split 2 or more ways.</p><p></p><p>If anyone else wants to answer if [USER=655960]@bbeljefe[/USER] ; isn&#39;t around, I&#39;d appreciate it to. I&#39;m using his diagram quoted above to reference this.</p><p></p><p>Thanks</p><p>[/QUOTE]</p>
[QUOTE="Chromatic, post: 8222397, member: 659121"] [quote name='bbeljefe']You can power the fan entirely from the amplifier's power inputs, using its battery & negative plus the remotes turn on wire. You can use any readily available 20 or 30 amp SPST (single pole single throw) automotive relay like [URL="http://www.parts-express.com/12-vdc-automotive-5-pin-relay-spdt-30-40a-bosch-type--330-073?utm_source=google&utm_medium=cpc&utm_campaign=pla"]this on from Parts Express[/URL] and, I'd fuse it at no more than 3 amps. The head unit remote will be disconnected from the amp and connected to the relay's coil (pin 86). Then, the other end of the coil will go to ground (85). The fused battery positive will go to the relay's common lead (30) and then, the normally open relay lead (87) will go to both the fan positive and the amplifier's remote terminal. And here's a diagram of the relay connections: [IMG]http://www.reuk.co.uk/OtherImages/5-pin-12V-automotive-relay.jpg[/IMG] [/QUOTE] I'm about to run to the store to grab a couple relays (both for when I pull my headunit to put the rear view camera in, the new "special" kenwood cord to run my Navigation off my phone,.. and to wire up the relay you suggested to isolate and create a proper ground for the headunit. But let me get this perfectly straight with the relay I'll be messing with today. I run a fused wire (3amp or less) to the 4gauge power wire on the amp (from[B][U] terminal 30[/U][/B]) I pull the remote wire from amp, and run it to[B][U] terminal 87[/U][/B],.. then I split that wire two more ways and one goes to amp remote in,.. and other to Positive wire off the fan itself. ([B][I][U]The diagram shows two 87's.. so I do that, or I run 87a to either the remote in on amp,.. and 87 to + of fan (or vice versa)[/U][/I][/B].) I run the remote wire from headunit into[B][U] terminal 86[/U][/B]. And.. finally I just tap into the 4gauge ground on amp , run a wire from it to[U] [B]terminal 85[/B][/U],.. and also tap that wire to run to the ground of the fan. I'm just trying to make this straight mostly on the wires I'm having to split 2 or more ways. If anyone else wants to answer if [USER=655960]@bbeljefe[/USER] ; isn't around, I'd appreciate it to. I'm using his diagram quoted above to reference this. Thanks [/QUOTE]
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I know DEAD HORSE.. but if you feel like it,.. Help me with Class A/B vs Class D.
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