First, having run this for a day now (beyond just a test), this does sound better than the original, has far more control (including fade), and all parts of the HU seem to work as indicated. There is a touch of loss to hard thumping from the original (probably due to running off of the HU amp rather than the vehicle amp and powering two speakers in series rather than two in parallel), but there remains some thump and better control, and unless you are an avid 'cruiser,' the base is more than sufficient. A couple of additional thoughts and some clean-up are in order. The black plastic cover is not merely a clamp as stated, it is also the receptacle into which the speaker grate plugs snaps. The hard part of the carpet is the screw at the plastic bulkhead cover, as, through abundance of caution, the engineers have a hole in the carpet overlapping the screw at the top of the bulkhead. If you can get it done without removing the carpet from this screw (i.e., only marginally folding back the carpet), more power to you. If you must remove it, I cannot figure out a way short of dismantling the entire bulkhead finishing, and that seemed too much. Both sides of my carpet tore at the hole, but it is entirely invisible and also continues to be firmly held in place by the flap under the plastic bulkhead cover. Also, before final plug-in and speaker re-attachment, while I trust this would be done, every open wire at the HU and the rear speaker sub-harness should be capped off in order that it cannot short to anything. If you take down the front passenger floor and expose the amplifier, wiring to the right should be easy and evident, coming out the back of the radio cavity, into the netherworld behind the floor/amp cover, and running up the door sills.