-Small Flathead Screwdriver
-Torx Set and Allen Wrench Sets
-Cresent Wrench (or correct size wrench for radio ground wire, possibly 10mm)
-Hot Glue Gun
-3.5mm Jack (radioshack has them)
Step 1: Remove the Radio
2) Turn ignition on and shift to drive (Make sure car is properly blocked!) and remove the shifter knob by removing the small allen screw directly under the shifter button.
3) Gently pull up on the trim that is under the shifter, it is just clipped on. You should have enough room to just set it aside without stressing the accessory and light wires (mine had wires for the heated seats that I added as well).
4) Remove the trim that covers the radio gently as well. You will not be able to pull it far from the dash and you will have to remove the connector on the traction control button and the connector on the climate control system.
5) Four phillips screws hold the radio in place, remove them and slide the radio outward.
6) Use the small flathead to remove the black and grey connectors from the radio.
7) Remove the antenna connector and use a small wrench to remove the ground strap.
8) Now the radio should be free!
Step 2: Disassemble the Radio
2) Carefully disconnect the two wire connectors from the facing
3) Remove the screws that attach the tape deck
4) Gently lift the tape deck up (mind the wire as shown in the picture)
5) Remove the two screws and connectors that attach the tape deck PCB (printed circuit board)
Step 3: Make the Modifications to the Radio
Note: Rather than soldering to the fine pitch pins of the preamplifier, I used a DMM to determine where the traces went and soldered to a more convenient component or test point.
Use your small wire (3 wires roughly a foot and a half long each) and solder one to each signal line (as shown with the white wires in the picture) and solder one to the signal ground (the black wire in the picture). I used shrinkwrap on the wires to hold them together nicely, but electrical tape will work just as well. Reassemble the radio, but do not connect the tape laser reader (small tape wire that leads to the cassette PCB). This will cause no sound to come from the tape in the cassette deck.
Step 4: Modify the Trim Panel
Solder a ground wire and two signal wires with roughly six inches of wire to the audio jack. You will have to look up the pin out for a headphone jack, as the pad closest to the collar is ground and the other two are signals (left and right).
Step 5: Test It!
Step 6: Reassemble
Step 7: Conclusion
I may try the same setup with a CD player if anyone is interested (I have two radios that fit my Intrepid, one tape/radio and one CD/radio). Also, I am looking at developing a bluetooth setup in the future once I can get a PCB built for it!