My first true 'mod' - the headrest speakers bought from Jaycar. They're not subwoofers, but they do make a noticeable difference, and help with the 'surround' effect. They were a piece of cake to install and were well worth the short time they took to install.At first I just bought the headunit and modified the bracket to hold it. But the fascia wasn't quite DIN-sized. Thanks to Jules from the MX-5 QLD Club for informing me about the 96 and onward models having proper DIN-width fascias. After grabbing the parts from the local Mazda dealer I was set. I'm very happy with the result with the new fascia and tray. If you want to get them too, the part numbers are N041-55-210A00 for the console fascia and B02A-66-9M0A for the DIN dash pocket.?The headunit itself is a JVC KD-SX985. It supports MP3 playback, 50Wx4 output, sub output, ID3 tags, station naming, a remote control and oodles of other features. I can definitely recommend this headunit.?The dreaded before shot. Up until 96, Mazda wasn't using the standard DIN sizing for their fascia and headunit. If you were to replace the stock headunit with an aftermarket one which used the DIN standard then you'd be left with quite an ugly install due to the gap below and around the sides. After getting a larger tray and a new fascia, I was able to fit the grey framing bracket which came with the headunit and everything fit perfectly.?