I just finished a AUX input to my radio, except instead of an external audio jack, I installed a blue tooth receiver. I eliminated my tape player, and installed a small switch in the tape deck door to switch between radio audio and BT audio. A couple of youtube videos were very helpful. The second video has pics of the parts he used on Amazon. Please note also I didn't need to remove the face plate to do my mod.
The only issue I can think of, is the BT receiver gets it power from the ignition power pin inside the radio, so it turns on when you start the truck, and will automatically pair with your phone, and your phone will show you hooked up to head phones. So if you have your audio switched to the radio instead of BT, you wont hear your phone ring or any other audio notifications from you phone while it paired to your stereo. Another switch could be added to switch the power to the BT receiver, or you could just un pair your phone, if that becomes an issue.
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Tim Muckey
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Johnathan Rader
This is the bluetooth receiver I installed, the power leads run to the opposite side of the amp board, and are soldered to the ignition + and ground pins. The receiver is hot glued to the radio cover on the tape deck side.
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This is the switch i installed I hot glued the tape door closed, and drilled a hole for the switch, and hot glued the switch to the back of the door.
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This is the finished product.
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