I just bought my first Tacoma, a 99 SR5 V-6 4X4 X-cab and it already had the Pow'R Slider installed and I love it. Whoever installed it did a perfect job and it works great. The motor is down in the compartment under the right rear seat(?), the switch is on the left dash, and all wires and cables are well hidden. I would recommend it to anyone.
just my $0.02 worth.
jon