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Unread 10-16-2013, 05:18 PM   #1
smokeybear
Registered User
2002 TJ Wrangler 
 
Join Date: Nov 2002
Location: Missoula, Montana
Posts: 408
Quadratec Sony plug n play problem/solution

Maybe you guys already figured this out - took me almost a year. I got a Sony Plug N Play setup from Quadratec. Great idea - comes with the dash adapter, prewired harness, and radio (Sony CDX-GT570UP). Easy install, but the subwoofer didn't work. I messed around with it a few times pulling everything apart and putting it all back together, checking continuity, pulling apart the console to get to the subwoofer, checking and rechecking that the blue wire went to the blue wire to run the subwoofer, checked the fuse, etc. Finally took a close look at the Quadratec wiring harness and compared it to the unused Sony harness in the box. The Q harness has the blue wire (antenna/subwoofer) in the 4th from the left position on the BOTTOM row. The Sony harness has the blue wire in the 4th from the left position on TOP row. I build a little jumper wire on the Q harness to connect the 4th top row position to the blue wire in the bottom position, and now I have a working subwoofer (such as it is). Not thumping bass, but a much much richer sound.

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02 TJ Sahara 4.0 5 spd, 3.73, Dana 44 rear, 2" Rubicon Express BB w/ Bilstein mono shocks, Warn M8000, 33x12.50 General Grabber AT2.
formerly 92 YJ 4.0 5spd, 3.5" Black Diamond lift, 1 inch Daystar body lift. 1 inch motor mount lift, Warn M8000, 33x12.50 BFG ATs, Ford 8.8, 4.10
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