I've been searching for a way to increase the input volume of the aux input jack on my Tacoma. Even with my ipod/iphone all the way up, I find myself listening to the radio on max (especially when the windows are down).
I came across this:
Looks easy enough to build, think it would work? From what I can tell, power would have to be supplied to it in a manner different from what he did, along with the inputs/outputs changed a bit as we won't be using standard RCAs. Neither of which would be overly complicated.