Originally Posted by EOD Guy
Sounds as if you have something back feeding into the tranny sircuit..... I'd disconnect anything you've added to the key-on circuit and see if your problem goes away. If it does then you need to find a different pwr source wire etc...... Don't know if this will fix your issue or not..... but if you relaced the switch and it has the same symptom and before....odds are the orig switch wasn't bad
X2 Instead of tapping into an existing circuit stop by NAPA and pickup a fuse holder the type that will accommodate 4-6 fuses and run a 8-10 gauge feed wire direct off the positive battery terminal.I like this style shown in the picture to add circuits.