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<blockquote data-quote="Romans5.8" data-source="post: 8577976" data-attributes="member: 645790">Hey folks!So I&#039;m upgrading the stereo on my motorcycle.&nbsp; I&#039;ve replaced the factory 5.25&quot; cheap speakers with a pair of Polk MM651 6.5&quot; speakers, and I&#039;m installing a Rockford Fosgate PBR300X2 Amp.&nbsp; I&#039;m using high level inputs for the Rockford amp.From the factory, the speakers plug in to a lead which then plugs into an inline disconnect that then runs through a wiring harness to the factory stereo.&nbsp; I took that lead, cut off the speaker-side connector and soldered it to the Amp&#039;s &quot;input&quot; connector.&nbsp; Effectively making a custom &#039;cable&#039; that connects on one end to the bikes proprietary speaker connections, and on the other end to the amps proprietary input end.If I connect the LEFT side input to the bike (and it doesn&#039;t matter whether I connect the left side input to the left OR right output of the bike), it plays just fine; through one speaker.&nbsp; If I connect the RIGHT side input to either side, the amp shuts off (I&#039;m not using a remote wire, this amp supports switching on when it receives that high level signal).&nbsp; If I connect both together, it pops and cuts in and out, going in and out of protection mode.My first instinct was a bad solder joint, so I cut the soldered connection and just temporarily twisted the wires together.&nbsp; The behavior was exactly the same.Again, it doesn&#039;t matter which side of the OEM stereo&#039;s output I connect it to; but it will only work if connected to the amp&#039;s left side input; and the right side is unplugged.Is there something I&#039;m doing wrong here?&nbsp; Or does this sound like the amp is bad and needs to be sent back?</blockquote>

[QUOTE="Romans5.8, post: 8577976, member: 645790"] Hey folks! So I'm upgrading the stereo on my motorcycle. I've replaced the factory 5.25" cheap speakers with a pair of Polk MM651 6.5" speakers, and I'm installing a Rockford Fosgate PBR300X2 Amp. I'm using high level inputs for the Rockford amp. From the factory, the speakers plug in to a lead which then plugs into an inline disconnect that then runs through a wiring harness to the factory stereo. I took that lead, cut off the speaker-side connector and soldered it to the Amp's "input" connector. Effectively making a custom 'cable' that connects on one end to the bikes proprietary speaker connections, and on the other end to the amps proprietary input end. If I connect the LEFT side input to the bike (and it doesn't matter whether I connect the left side input to the left OR right output of the bike), it plays just fine; through one speaker. If I connect the RIGHT side input to either side, the amp shuts off (I'm not using a remote wire, this amp supports switching on when it receives that high level signal). If I connect both together, it pops and cuts in and out, going in and out of protection mode. My first instinct was a bad solder joint, so I cut the soldered connection and just temporarily twisted the wires together. The behavior was exactly the same. Again, it doesn't matter which side of the OEM stereo's output I connect it to; but it will only work if connected to the amp's left side input; and the right side is unplugged. Is there something I'm doing wrong here? Or does this sound like the amp is bad and needs to be sent back? [/QUOTE]

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