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Message: <blockquote data-quote="audioholic" data-source="post: 6832832" data-attributes="member: 549629">Do you own a multimeter? If not, buy one. You can get one most places for $25, or at harbor freight for like $4. Once you get yours or buy one, test for power at the amp's terminals. Red probe to power input terminal, black to the ground term. If it shows 12v or more, make sure the rem wire terminal also gets 12v (with radio turned on).I assume the amp's power light if odd, which eliminates any signal problems. The amp is either not getting power, the ground has become disconnected/loose, or the REM signal is not working properly. Oh, or it could have had a speaker come loose. The multimeter will also check this by doing a continuity test at the speaker terminals.</blockquote>

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