Alpine PDX-F6 150w x 4 SQ Amplifier. Very Lightly Used with Original Box - One of Alpine's BEST Amps, Quiet & Very Under-Rated! $345 + S&H | DIYMobileAudio.com Car Stereo Forum
ALPINE POWER PLUG PDX F4 F6 M6 M12 HARNESS AMPLIFIER - video Dailymotion
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Power Battery Connector Speaker Plug For Alpine PDX-F6 PDX-F4 PDX-V9 PDX-M6 M12 | eBay
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Alpine PDX speaker connector plugs (4) for Sale in Seattle, WA - OfferUp