There is no such thing as an exact size match for the 124. Aftermarket
coaxials for the front: four inch. For the rear: 5.25 inch. MB Quart,
excellent coaxials are available discounted online. After removing the rear
grills and unclipping the awful o.e. speakers, simply lay a bead of silicone
adhesive around the edge of the plastic, circular mount and lower the new
speaker into place and replace the grill. Of course, all aftermarket quality
speakers are four ohm impedance, designed to be driven by a head unit which
puts out four ohms. The outdated Grand Prix tape/radio unit comes out in
less than five minutes with no tools. To do everything the correct way means
running new wires from the new CD head unit to the speakers. Do not use the
leads coming off the dirt-collecting o.e. fader. Any new head unit will have
an electric fader built into it. P.
Replace front o.e. speakers with four inch coaxials. The rear takes 5.25"
coaxials. To install the rear speakers, lay a bead of silicone around the
circular plastic mount and lower the driver onto it. P.
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