I rearranged my amps under the seats to get everything to fit. My new Arc KS300.4 would not fit under the driver's seat where my MTX 4-channel had been.

So, I moved the JBL GTX500 over under the driver's seat and put the KS300.4 where it had been under the passenger seat.

I also cleaned up all the wiring and made everything neater and more secure.

Making room to work:

Listen up kids, friction tape is NOT THE SAME as Tesa Tape:

Finishing up:

How they fit with the seats installed: