It would help if you told us specifically where the noise is coming from (i.e. under the valve covers, at the front crank, etc.)
From your video, it sounds like it's an internal engine problem. Did you check your oil levels. Sounds like there is none in it.
Is your car overheating? (broken water pump).
Just guessing, based on what you have shared so far.
2006 GT, Strut Tower Brace, Gas Hood Struts, FR Intake Plenum cover, Metal Fuse Box cover, Moroso brake reservoir cover, Rear shock tower brace, Front Bumper Lip Spoiler, JVC DVD Head unit w/ back-up camera, satellite Radio and USB input, 2 - 12" sub-woofers, 4 - 6"x8" speakers, 2 - 6.5" speakers to replace the door subs, 3 amplifiers, LED lights under the hood and in the trunk, chrome e-handle on parking brake handle, chrome cup holder trim, and trunk lid cover with running pony emblem.