trailer wiring - be careful here!

[James Marriott]

> Sorry, we're not out of the woods yet (and I'm not trying to
start a flame
> war or anything).
> >This problem has already been solved for $40 at any parts
store.
> >It is a combination of the $15 4/3-filament converter and a
> >separate power supply wire (on the t44s available handily from
> >the nearby battery).
> James, I don't think that will work, because the 4/3-filament
converter box
> draws power from the car's lights and combines the signals to
light the
> trailer lights. Unless it has a separate power supply wire (and
mine
> doesn't), it will still melt the harness. If yours has a
separate power
> supply wire, please let me know who makes it and how much it
costs, because
> that box is then doing exactly what my (proposed) relays will
do, and will
> have the separate power supply as I want to use, too.

Ahhh, but it DOES have a fused 12V input. It should be on the peg
next to your $15 converter for about $40-50. The description will
say something like "4- to 3-wire converter, with separate power
supply for sensitive new cars' electrical systems."

hth and, as always, ymmv,
James Marriott
'87 4kq (alias "late-B2 90q") with rare NG engine, 181k, hitched,
cheapo converter
'89 200q (MC1, ProconTen/no bag, 1.8 blah blah), 132k, hitched,
cheapo converter, autocheck "brake light" every time I hook up
the trailer
Boise, ID, USA     http://www.webpak.net/~marriott/