Low Volume with Aftermarket Head Unit
#23
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Join Date: Apr 2013
Location: tennessee
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I'm a car sterio installer and have been for 12 years. Nissan bose systems (or any Bose for that matter) have a VERY high preamp voltage off the stock headunit and the Bose amp is designed to work with it. If you buy a aftermarket CD player and add it to the Bose amp using Metra part number 70-7551 (as I'm certain you all did or something like it), then you MUST use a radio that has at least 4volt preouts to avoid this problem.... A workaround is to use Metra part number 70-7550 (non-amplified harness) and wire the speaker leads as normal, but then you will have the OPPOSITE problem it being TOO loud because you're running an amplified signal into the amp. If you decide to go that route you can work around that by using the 70-7551 with line out converters on the speaker leads (NOT the rca connections) on your lower powered aftermarket radio and adjusting the lineouts to a power level proper for the Bose amp. ...... PAC makes all kinds of interface adaptors... I'm fairly certain the one you guys were taking about is most likely a lineout converter......That is really it as far as all this is concerned.
Last edited by rebelscum; 05-05-2013 at 12:14 AM.
#24
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#25
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MY350Z.COM
MY350Z.COM
#26
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
https://pac-audio.com/catalog/radio-...ment/roem-nis2
Shop around. Like $35-40. All that's needed for aftermarket-to-Blose system upgrade.
Shop around. Like $35-40. All that's needed for aftermarket-to-Blose system upgrade.
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