Bazooka's F.A.S.T. (Factory Audio System T-harness) system is a T-harness that connects directly to the factory wiring harness in your car, allowing easy connection of an EL-Series amplified Bazooka bass tube. The connector eliminates the need to cut or splice wires — a time-saving option, especially for those who want to add great bass to a leased vehicle!

The 70-71-1761 harness connects to 1987 and up Toyota/Geo vehicles. The T-harness has one plug for the factory wiring, one plug for the factory radio, and one plug which connects to the Bazooka ELA-hp series Amplified Bass Tube.

Note: The harness will not work in every vehicle, so it's important to check your vehicle's compatibility with a Sales Advisor (1-888-955-6000) before ordering.

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Hands-on research

What's in the box?

Download owner's manual

  • 16.5' Toyota/Geo factory T-harness
  • 6" Jumper harness

Product Research


Compatibility: This T-harness is designed to work with select 1987 to current Toyota and Geo vehicles. The harness plugs into the factory radio harness, allowing you to connect a compatible Bazooka EL Series Amplified Bass Tube, while maintaining the integrity of the vehicle wiring. Note: For each specific vehicle, please verify compatibility with Auto Install Guide.

Connections: The harness has a jumper section and an integrated harness extension. On one end of the jumper section, a clear 10-pin male connector accepts the factory radio harness. On the opposite end of the jumper section, a clear 10-pin female connector plugs into the factory radio. The harness extension has a clear 14-pin (only 7 pins present) male connector that plugs into the amplified bass tube. In addition to the main harness, a 6" jumper harness is supplied. One end of the jumper harness has a clear 4-pin male connector that accepts the factory radio harness. The other end of the jumper harness has a clear 4-pin female connector that plugs into the factory radio. Note: The clear 10-pin male connector on the main harness has a red lead that should not be connected during installation. Instead, this lead should be taped off to prevent it from shorting.

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