How do i change the stereo in a 1988 Lincoln Town Car?

First you will need to remove the three sheet metal screws from the radio trim below the dash. Then snap out the 1 1/2" plastic trim piece above the radio trim. Next take out the three screws from behind the trim. Pull the instrument cluster trim piece away from the dash and pull the radio trim panel out from beneath the cluster trim panel. now you will have to remove three hex sheet metal screws (7/32") that hold the radio and radio brackets in the dash. After that just disconnect the two wiring harnesses, antenna, and harness retaining clip.

Replacing the stock deck will require the use of a wiring harness (unless you want to cut the wires, but that is a bad idea. You ca pick up a harness on eBay for about $5 but if you buy it at a place like Best Buy expect to pay at leat $20). Plus if you are switching to a new stereo instead of the old shaft style you wil also need an install kit, I would recommend the Scosche kit because they are probably the easiest to use. Hope this helps.