Oz, I'm not a big fan of Liquid Nails...I'd suggest a tube of 'fast set' silicone caulk, applied 'bout the diameter of toothpaste... Somewhat 'stinky' (acetic acid, a.k.a. vinegar...*L* Fades away soon enough...) but not toxic to you or electronics....
Sets up in about an hour...since the 4x4 pieces are small, there shouldn't be any issues. You could cut the 4x4 into smaller pieces (2, 3, etc.) to make it less of a 'hunk', and distribute them within the cab. Smaller will be less likely to come loose, regardless of how loud you push them... ;)
BTW, re the 4x4....try to select one that's as 'dry' as possible. If they're all 'wet', let it sit for awhile either in the sun or indoors in a warm space. 4x4s' are typically pressure treated for exterior use and can be moist. It's a copper-based solution; again, safe to you and gadgets. If the wood's dry(er), the silicone will adhere better....
Have fun, mind your fingers around the saws....;)
Sets up in about an hour...since the 4x4 pieces are small, there shouldn't be any issues. You could cut the 4x4 into smaller pieces (2, 3, etc.) to make it less of a 'hunk', and distribute them within the cab. Smaller will be less likely to come loose, regardless of how loud you push them... ;)
BTW, re the 4x4....try to select one that's as 'dry' as possible. If they're all 'wet', let it sit for awhile either in the sun or indoors in a warm space. 4x4s' are typically pressure treated for exterior use and can be moist. It's a copper-based solution; again, safe to you and gadgets. If the wood's dry(er), the silicone will adhere better....
Have fun, mind your fingers around the saws....;)