12v bat/ign/gnd wiring access in trunk of 2015 5.0?

[stretch]

I have what's bascally a glorified LTE/wifi hotspot that I'd like to permanently mount in the trunk. It's designed for industrial/mobile use, so that's the easy part. The hard part is figuring out how to - without making a mess or blowing my electrical system - find out how to pull off the following connections from the trunk fuse panel:

• 12v battery (always-on)
• 12v ign/acc (turns off when car is off)
• Ground ("the black wire"

I have found various fuse taps and such but I can't even figure out what the heck the type or spec of the fuses in the 2015 trunk panel are - they draw a complete blank stare at several auto parts stores.

I'm also considering various antenna types, most of which seem to require penetrating the sheet metal with a 3/8 or 1/2" opening. Blasphemy, I know, but if you *had* to do it, what would be the least bad place to do it?

 

[parisgrey]

if you have an ultimate the pinout is different; however,

https://genesisowners.com/hyundai-genesis-forum/showthread.php?18809-Installing-sub-into-Genesis-sedan&p=217837#post217837 I tapped into the amp in the left rear of the trunk for ignition switched, tapped a small hole for ground, and ran a line straight to the battery for constant +12v, which is also conveniently located in the trunk.

 

[Mark_888]

I'm also considering various antenna types, most of which seem to require penetrating the sheet metal with a 3/8 or 1/2" opening. Blasphemy, I know, but if you *had* to do it, what would be the least bad place to do it?

Is there anyway to put the antenna in the same place as the satellite radio antenna (on the rear of the roof).

 

[stretch]

Is there anyway to put the antenna in the same place as the satellite radio antenna (on the rear of the roof).

I really doubt it - even if I could find a perfect match, I think even a pro installer (which I am the exact opposite of) would be wary of trying to run five or so fairly stiff coax cables from there to the trunk without a LOT of work, but at least one company makes one that mentions magnetic-mount, meaning I need to go see how much chance there is of getting the cabling through the trunklid edge without damaging either the car or the cables. I'm going to ask the seller for an install sheet to give a better idea of how much clearance those cables need, or do I just need to get over it, and *wince* pull out the power drill.

 

[stretch]

if you have an ultimate the pinout is different; however,

https://genesisowners.com/hyundai-genesis-forum/showthread.php?18809-Installing-sub-into-Genesis-sedan&p=217837#post217837 I tapped into the amp in the left rear of the trunk for ignition switched, tapped a small hole for ground, and ran a line straight to the battery for constant +12v, which is also conveniently located in the trunk.

I think this might be exactly what I'm looking for, thanks!