Free shipping & free shipping insurance on all Bazooka items! We will not be undersold! Please contact us at 1-877-ASK-HIFI (1-877-275-4434) or email us if you see a lower price on this item. Once you ve used the Vehicle Specific FAST adapter this harness will get your ride boomin in no time. The BTAH connects on one end to the Vehicle Specific FAST adapter and the other end to a Bazooka Amplified Bass Tube. Simply Ground the harness near where you re mounting the Amplified Bass Tube and you re done! No splicing no figuring out which wire goes where. Get your install right the first time with F.A.S.T.! The FAST-BTAH works with BTA6100 BTA8100 BTA10100 MBTA8100 MBTA10100 EL6A EL8A EL10A EL6A-hp EL8A-hp EL10A-hp CS8A TA850 and TA850C Bass Tubes. THE BTAH IS REQUIRED TO COMPLETE INSTALLATION OF AN AMPLIFIED BASS TUBE WILL NOT WORK WITH BTAx200 BTAx250D RSA RSA-hp OR CS8A5 BASS TUBES