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All Spooled Up
Join Date: May 2009
Location: Between NE and Central PA
Posts: 2,516
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Yellow is (almost universally) memory power, which needs to be connected to a terminal on the fuse panel that stays hot when the key is removed. Red is main power, which connects to a terminal that is only hot when key is in ACC or ignition-on positions. Blue is an output signal from the radio that is used to raise/lower the power antenna and/or turn power amp(s) on/off. These (and all other) connection points should be available on the factory radio connector wiring.
P. S. Symptoms described DO NOT indicate a bad alternator. Either the amp is being over-driven, or the circuit (or wiring) from which it is powered, cannot supply enough current. Or you have 1 or more bad speakers
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>gray 89 951S - K27/8, MAF, 3" intake, 3" exhaust w/separate waste pipe, 55# inj, late cam; >red 87 924S - chip, K&N, punched-out cat&muffler >black 80 924 - (sold) >maroon 77 924 - auto (sold)
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