> 2. instruction found on Samba uses the original pos (+) of the old horn for
> both - horn and relay.
> https://www.thesamba.com/vw/forum/viewtopic.php?p=7840720
>
> so which one is valid or better to use? I would think the #2 will bypass
> the relay (not sure)... or is it the same as #1 thus easier to install (no
> drilling, no extra wire)?

Yes. But, #2 still uses the relay; it doesn't bypass it. I used that
method on my '81 and '88 each with dual horns. They're loud!

It seems like you're "getting something for nothing" by using the OE
positive wire for both relay positive connections but it does work. If
the OE positive wire doesn't show signs of corrosion and you see
something close to or same as battery voltage on that wire (circuit),
I'd say it should work fine to act as supply to relay 30 and positive
connection at (86 ?) of relay switch.

Be certain to have good clean ground connections for horn(s). I
cleaned all points at horn mount bracket(s), including mount point to
frame, installed horn ground(s) there, then coated that connection
with dielectric grease. Vaseline should do same.

If using a new positive wire from a B+ source to relay 30 (power
"in"), that wire should be fused. I'd guess the Bus Depot instructions
say to do same?

Neil.

-- 
Neil n

VE7TBN

1988 Westy 50º ABA swap: https://tinyurl.com/yap5hpwt

1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8

VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>