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<blockquote data-quote="XTRProBoy" data-source="post: 2204307" data-attributes="member: 571009">^???&nbsp; Worst scenario is they don&#039;t work?&nbsp; The worst scenario is you burn the remote circuit on the head unit!3 amps is usually considered the maximum on a HU&#039;s remote wire.&nbsp; The two amps plus the antenna remote might be pushing it...&nbsp; Most amp remote wires on HUs are rated for a maximum of 300mA or so.&nbsp; Personally, I&#039;d put a relay on there...&nbsp; With only 3 devices you might get away with it, depending on what they draw from the remote wire, but a relay is just cheap insurance and can save you from frying the remote circuit in the HU.A simple $5 SPDT or SPST 12V relay will do fine.&nbsp; Pin 85 or 86 connect to the HUs blue wire, connect the other (either of 85 or 86 that you didn&#039;t use) to ground.&nbsp; Then connect the amps and antenna to pin 30.&nbsp; Connect +12V to pin 87 and that&#039;s it&nbsp; (recommended you fuse this connection at 5A or so, or use an exisiting fused circuit in the vehicle like the constant 12V line to the HU).</blockquote>

[QUOTE="XTRProBoy, post: 2204307, member: 571009"] ^??? Worst scenario is they don't work? The worst scenario is you burn the remote circuit on the head unit! 3 amps is usually considered the maximum on a HU's remote wire. The two amps plus the antenna remote might be pushing it... Most amp remote wires on HUs are rated for a maximum of 300mA or so. Personally, I'd put a relay on there... With only 3 devices you might get away with it, depending on what they draw from the remote wire, but a relay is just cheap insurance and can save you from frying the remote circuit in the HU. A simple $5 SPDT or SPST 12V relay will do fine. Pin 85 or 86 connect to the HUs blue wire, connect the other (either of 85 or 86 that you didn't use) to ground. Then connect the amps and antenna to pin 30. Connect +12V to pin 87 and that's it (recommended you fuse this connection at 5A or so, or use an exisiting fused circuit in the vehicle like the constant 12V line to the HU). [/QUOTE]

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