how to use shower switch

[kend]

Hi, I'm wanting to run the pwr on switch for a radio amplifier though my unused shower button so I can turn it off when I need to save battery. How do you use the switch? Do you run from the fuse block? Does anyone have any pics or advice on connecting?

Ken

[kneebrdr]

When I added aftermarket heater, I just found which wires were connected to the touch pad heater button and spliced into the wires, sure it is the same for the shower button.

[kend]

After reading some more, I have found that the shower switch (at least on 2000-2002 models) controls the orange/blk wire from the fuse block. It looks like you can use the unused switches by tapping into the wire they control after the fuse box. Does anyone know of a chart that tells which switch does what with the power? Constant 12v or momentary on
Are the unused wires just tucked inside the harness? I see the orange/black going into the harness but not coming out