I went on ahead and took my own advice and installed the attached gauge in the cubby hole opening. With all the added filtration (GDP MK-2 with a Donaldson P551313), using the Baldwin BF7977 as the primary fuel filter, and the clock showing 230,000 miles, I wanted to both monitor the lift pump as well as watch the pressure differential for an indication of when to change filters. I also run a Donaldson P550848 water separator on my auxiliary tank that doesn't figure into this because it is gravity fed. Total cost was slightly over $100. And yes, I didn't choose to use isolators.
I went to the local Sight & Sound store and had the installer cut me a piece of plastic with a 2" hole for mounting the gauge in the cubby hole area. (The cubby hole is now in the garbage.) The two LED buttons are the on-off switches for my fog lights and driving lights. Since my truck is a 2006, I had already had issues with the TIPM acting goofy and decided to circumvent any potential future problems by wiring around it. All my additional lighting is fed straight from the batteries using relays and I can have lights whenever I choose. This is probably illegal in some states.
- Ed
I went to the local Sight & Sound store and had the installer cut me a piece of plastic with a 2" hole for mounting the gauge in the cubby hole area. (The cubby hole is now in the garbage.) The two LED buttons are the on-off switches for my fog lights and driving lights. Since my truck is a 2006, I had already had issues with the TIPM acting goofy and decided to circumvent any potential future problems by wiring around it. All my additional lighting is fed straight from the batteries using relays and I can have lights whenever I choose. This is probably illegal in some states.

- Ed