neogenic83

I bought a wiring hardness for the mach system it only cam with one. when i took the stero out i noticed it had 3 everywhere i look all i see is adaptors for the one plug. hot do i tie the other two in so i can get my bass back

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saleen blower ,BBk equal shorties catted X-pipe, SLP Loud Mouth, Tri-Ax, 3.73's, 1.5" drop, BBK control arms adjustible S/S
best 13.65 1.9 100.4 before headers N/A

4.6marine

what year and modle and what kind of sound system......since ford likes to change things around every year.

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2000 gt vert. (stock for now)