Major draw from fuse # 10 'engine run / acc'

[RED025.9]

Anyone have ideas on what could be pulling a .75 draw on this fuse? There is an after market alarm in the truck but we disconnected the brain from the alarm and it didn't make a difference. Another thing is after all this now it won't shift out of park. probably going to bypass the lock out switch to drive it to a shop if I can't figure this draw issue out.

 

[KGBIGCOUNTRY]

Any other aftermarket wiring on the truck that could be spliced in along with the other wires?

 

[RED025.9]

Any other aftermarket wiring on the truck that could be spliced in along with the other wires?

not that we can tell. it does have a trailer brake controller plugged into the factory harness that we can not unplug (see my previous thread on this issue!). there were aftermarket horns but we were able to isolate and remove all of the wiring for them. our instinct is telling us it is the alarm as it looks like a terrible install.