Yoda Keith, I would not drill it on the battery. If something goes wrong in the drilling (bit hits battery, or other random thing) you are potentially opening up a whole lot of other things that can go wrong. I would only disconnect the one terminal to do the drilling. It's much easier to deal with one thing that you can control. One lead will still retain everything in the truck. Also use a stepped drill not a twist drill as it does a better job in thinner metals with less chance of grabbing the metal.
Let me ask, have you considered following the battery leads to see if there is a junction point? If the junction point is a bolted connection, simply tap in there. WHY? B/C the battery cables are designed to deliver over 400 amps to the starter when cranking the truck. Once the truck is started, amperage through the system drops by that amount. This will keep you from having to alter select items in the truck. You may even be able to tap into the stock wiring just before the MEGA fuse (don't own or have access to one of the newer fords).
Just my thought on how / where to tap into the wiring. Use the information as you please.
Let me ask, have you considered following the battery leads to see if there is a junction point? If the junction point is a bolted connection, simply tap in there. WHY? B/C the battery cables are designed to deliver over 400 amps to the starter when cranking the truck. Once the truck is started, amperage through the system drops by that amount. This will keep you from having to alter select items in the truck. You may even be able to tap into the stock wiring just before the MEGA fuse (don't own or have access to one of the newer fords).
Just my thought on how / where to tap into the wiring. Use the information as you please.
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