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SportTrac Discussion
Audio Systems
Strange pulsing whine in speakers caused by bluetooth
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<blockquote data-quote="blert" data-source="post: 1048673" data-attributes="member: 64702"><p>Been working with Crutchfield (tried all their suggustions so far to no avail) and have also posted on r/CarAV (no help yet though). Searches lead only to bluetooth issues while playing (static, popping, etc.). Maybe someone here has dealt with this before...</p><p></p><p>Having a freaky little problem... When the head unit is searching for a Bluetooth connection I get a whine from the speakers. It is not constant, eight seconds on, ten seconds off, repeat. If I connect my phone the pulsing goes away, disconnect my phone and it comes back. Also, if I leave my phone disconnected and go into the head unit settings and re-initialize the Bluetooth it goes away until I reconnect and then disconnect my phone, at which time the pulsing whine comes back. It can really only be heard (by me anyway) while the system is muted or set to a source with no input. Volume of the whine does change depending on the system volume when muted. It's not the alternator, the truck is not running. No other accessories are on.</p><p></p><p>Things I have tried... Disconnect antenna, no joy. Re-did the ground wiring in the harness, no joy. Added a 12ga ground wire from harness to chassis, no joy. Disconnected microphone, no joy. Checked for head unit firmware update, no joy.</p><p></p><p>- JVC KD-X380BTS</p><p>- front: JBL Club 8622F</p><p>- rear: Infinity REF-8632CFX</p><p>- no other hardware</p><p></p><p>Any ideas?</p></blockquote><p></p>
[QUOTE="blert, post: 1048673, member: 64702"] Been working with Crutchfield (tried all their suggustions so far to no avail) and have also posted on r/CarAV (no help yet though). Searches lead only to bluetooth issues while playing (static, popping, etc.). Maybe someone here has dealt with this before... Having a freaky little problem... When the head unit is searching for a Bluetooth connection I get a whine from the speakers. It is not constant, eight seconds on, ten seconds off, repeat. If I connect my phone the pulsing goes away, disconnect my phone and it comes back. Also, if I leave my phone disconnected and go into the head unit settings and re-initialize the Bluetooth it goes away until I reconnect and then disconnect my phone, at which time the pulsing whine comes back. It can really only be heard (by me anyway) while the system is muted or set to a source with no input. Volume of the whine does change depending on the system volume when muted. It's not the alternator, the truck is not running. No other accessories are on. Things I have tried... Disconnect antenna, no joy. Re-did the ground wiring in the harness, no joy. Added a 12ga ground wire from harness to chassis, no joy. Disconnected microphone, no joy. Checked for head unit firmware update, no joy. - JVC KD-X380BTS - front: JBL Club 8622F - rear: Infinity REF-8632CFX - no other hardware Any ideas? [/QUOTE]
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SportTrac Discussion
Audio Systems
Strange pulsing whine in speakers caused by bluetooth
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