> I think a lot of guys buy them because they think they can just follow the
> instructions without knowing anything about automotive wiring...
> Turns out you still have to learn something about automotive wiring to
> follow the instructions.

I should add one last thing, in agreement with Bill:  With regard to his
comment above, I must concur.  You do need to have a basic knowledge of
electrical wiring in order to hook up these kits (or else have your mechanic
do it), even though instructions are included.  You don't need to be an
electronics engineer, but you do need to know something about electrical
wiring.

 - Ron Salmon
  The Bus Depot, Inc.
  http://www.busdepot.com