Gotta give him props for the laptop > FM transmitter > radio hookup. That's some Macguyver **** right there.
Yeah the brands are low to **** tier, but not everyone has the money for good stuff. The only thing I really take issue with is the wiring. A rat's nest of wires in the back, some blinking thing lurking under the back seat, and ffs... that severed power wire at the door. I just hope that thing is fused under the hood for when it inevitably shorts.
Edit: Jesus, I take that back. The cap just sitting in the pocket on the back of the passenger seat and the ground - my god, the ground! Grounds it to a screw that holds the plastic trim piece in place, on top of the plastic.