ok. on both s5 and s4 alternators L terminal goes to dash. i can wire that up

on s5 alt it has 2 going to battery. i can easy wire that up.

but....S terminal goes to bat on s5
but

(r) terminal on the s4 goes to the ignition switch
...
how do i wire up the s5 to the s4 wireing harness for the ignition switch?

do i tie it in with one of the wires going to the battery?

 

silly girl Search

 

Yep, this has been covered, even by me. The "S" terminal on the S5 alt needs fused constant 12V. Where as the S4 alt uses switched voltage source.

 

silly josh. come over!

hmmmmm. 12v hu....
hmmmmm. interesting....

but what does this mean to me.. i need to install a fuse to s terminal?
or will it just not work cuz its different as you said

 

i had to install an S5 alt in my S4 b/c i couldnt ghet a new alt in time (and i just happened to have a whole s5 car thart isnt street legal yet) i just ran a wire from S to the positive battery post and thats about it. It not too bad really. Follow the diagram and you'll be set.

 

ya. R terminal wire should be ran to battery. i read that now.
just the diagram doenst say run the pink one to the pos.
but now i found more.
i just opend my god damn eyes. hah.
but now its raining outside

 

Yep, a 30 AMP inline fuse from between the S terminal and the Battery is a good idea. If something happens, at least you arent hardwired to the batt.

Rat

 

These might help...

 

What happens when there's short in the main power wire from the alternator and the battery +?


-Ted

 

Lots of arcs and sparks?