have to see the exact layout/connections to say what's going on, but if it's all hooked up separate than running other things should have no effect at all .... I'd be inclined to use a 9 or 10a fuse for signals and you can use any type fuse you want, but that won't make it better

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics