Earlier posted on Tumblr on september 27 2013: This week I replaced the old cassette-player the PO put in. I still had this Sony unit which I used in my Celica a few years back. With a little help I replaced the ghetto wiring the PO left me.
Testing the radio quickly made clear the speakers produced a flat range of sound. They also didn’t handle the few extra watts gracefully so they needed replacing. I chose 3-way 10cm / 4” Pioneer speakers to get the best range of sound while only using the 2 stock speaker locations of the Mk1a MR2. The new units are rated up to 200W, more than enough considering the output of the radio.
Replacing the speakers was easy, to get the covers out of the dashboard you use a small flat screwdriver under the edge and pop them out. They are held in place by 2 tabs. The rest was a matter of unscrewing, disconnecting the old, connecting the new and screwing in the new units in place.
The sound is much better now, the range is surprisingly nice. There isn’t a lot of bass, you would need a subwoofer for that if you are into such musical mangling.