What is F.A.S.T.?
F.A.S.T. is installing a Bass Tube in most cars in under 30 minutes. F.A.S.T. is getting your car sounding great quicker. F.A.S.T. is doing your install right the first time! F.A.S.T. is the innovative T-harness system that allows you to integrate the vast majority of OE systems out there. F.A.S.T. is the Factory Auto Sound T-Harness system.
How does it work?
First, choose the Adapter plug to fit your application. Next, be sure to pick up a FAST-BTAH extension cable, and one Bazooka, and get to it. The typical install takes under 30 minutes! Forget splicing wires, forget warranty concerns, forget wiring headaches! Just plug it in, and you’re done! It’s just that easy.
This harness is designed to connect to OE radios in MOST** Mazda (and some Ford) Vehicles from 1989 and up. Not for use in amplified systems.

THE FAST-BTAH IS REQUIRED TO COMPLETE INSTALLATION OF AN AMPLIFIED BASS TUBE
The FAST-BTAH works with all of these amplified Bazooka Bass Tubes:
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BTA6100
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BTA8100
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BTA10100
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EL6A
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EL8A
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EL10A
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EL6A-hp
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EL8A-hp
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EL10A-hp
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CS8A Bass Tubes.
WILL NOT WORK WITH BTA200, RSA, RSA-hp OR CS8A5 BASS TUBES®
Adapter for MOST** Mazda (and some Ford) Vehicles from 1989 and up. Not for use in amplified systems
FAST-BTAH
Fits the following vehicles:
MAZDA
323 1990 - 1994
626 1990 - 2001
929 1990 - 1997
Miatta 1990 - 2001
Millenia 1994 - 2001
MPV Van 1990 - 2002
MX3 1992 - 1996
MX6 1990 - 1997
Protege 1990 - 2000
Tribute 2001
RX7 1990 - 1997