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<blockquote data-quote="highfigh" data-source="post: 8889759" data-attributes="member: 691685">Do you have a multimeter? If not, you really need one and you need to use it to measure Current and Voltage. If you haven&#039;t measured Current, the meter is connected in series with the wire and terminal. Also, remember to set the meter to Voltage afterward, or the meter&#039;s fuse will blow. If it&#039;s not protected, the meter can be damaged- use a meter rated for 10A.&nbsp; DO NOT use a test light with regular incandescent bulb if you don&#039;t know what the wire is supposed to do- some circuits are too sensitive for the Current draw of a bulb (ECM and other modules). Set the meter to measure Current, then connect one meter lead to the remote turn on terminal on the DSP and connect the other to the amp&#039;s power cable. If that&#039;s more than 150mA, contact the manufacturer and find out what needs to happen, to get it right. Measure the Current on the remote turn on for the amp in the same way and do the same if you need to turn on other electronics. Add the total of them and use a relay if it exceeds 150mA. I don&#039;t remember any head units that were capable of delivering more than that number and even home AV equipment has the same limit for remote turn on.</blockquote>

[QUOTE="highfigh, post: 8889759, member: 691685"] Do you have a multimeter? If not, you really need one and you need to use it to measure Current and Voltage. If you haven't measured Current, the meter is connected in series with the wire and terminal. Also, remember to set the meter to Voltage afterward, or the meter's fuse will blow. If it's not protected, the meter can be damaged- use a meter rated for 10A. DO NOT use a test light with regular incandescent bulb if you don't know what the wire is supposed to do- some circuits are too sensitive for the Current draw of a bulb (ECM and other modules). Set the meter to measure Current, then connect one meter lead to the remote turn on terminal on the DSP and connect the other to the amp's power cable. If that's more than 150mA, contact the manufacturer and find out what needs to happen, to get it right. Measure the Current on the remote turn on for the amp in the same way and do the same if you need to turn on other electronics. Add the total of them and use a relay if it exceeds 150mA. I don't remember any head units that were capable of delivering more than that number and even home AV equipment has the same limit for remote turn on. [/QUOTE]

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