How to Modify the Stock Fiero Radio for MP3 Players, With Pics. (Page 7/7) lorennerol JAN 05, 02:42 PM quote Originally posted by 84ta: The reason that no one has had any luck with this mod is because you are tapping into the wrong wires going to the amp board. Forget the L and R on the board. Only the 84 radios had this layout. From the front of the radio tap into the 3rd and 4th wires back. These are the L and R analog audio signals coming off of the tuner board. That's great info. Did you scope the output to figure it out? jmbishop JAN 07, 03:55 PM I tried this mod years ago and was unsuccessful, I'd like to try again with the non tape deck am/fm from my 84. tom10122 MAR 02, 05:47 PM Just did this mod on my 88 Radio. It has EQ settings and a cassette deck. You have to wire L and R to the 3rd and 4th wires in on the AMP ,like 84ta said. The other mods I believe are getting interference from the tuner board. The audio works great. I powered off , plugged in, then turned it on. The weak point is either the jack or the cable for me but its only an issue 1% of the time. Images are big so I'm just posting links http://postimg.org/image/kl6w5rrcl/ http://postimg.org/image/e8rqvxoad/ http://postimg.org/image/48s92ann9/ viperine MAY 05, 06:50 PM Great thread, I just spawned the idea at random the other day and then saw this resurrected from years gone by. My challenge is slightly different, I've adapted a 2001 era monsoon head unit into my '86 GT, and rather than adding an audio jack, I'd like to hardwire a Bluetooth module in. A few are available via eBay, though mostly directly out of China. Would love to be able to throw my phone on the charger while my YouTube app streams a playlist in the car. Afraid to risk damage to the head unit while wiring the module in though, it's not too easy to find these monsoon units under $100 with all of the lights still functioning. Secondly, reading the entire thread was like a rollercoaster. At first, the idea is exciting. Then you read the failures and your heart sinks while your brain says "yep, that's what would happen if I tried!". Either way, I appreciate the efforts and ideas here! fierosound SEP 15, 01:24 PM quote Originally posted by viperine: ... Secondly, reading the entire thread was like a rollercoaster. At first, the idea is exciting. Then you read the failures and your heart sinks while your brain says "yep, that's what would happen if I tried!". Agreed. Thread should have been edited to have only the correct step-by-step instructions... FStorm AUG 01, 01:51 PM Just finished installing an aux plug in my 86GT. It was wires 3&4 as per the end of this thread. I spiced into the ribbon cable rather than soldering to the board. Biggest challenge was getting a good ground on the aux plug. If you have a lousy ground the sound will be lousy. (In my case original ground point almost made it sound like the voices were muted) Also, ended up drilling 2 holes as the plastic was too deep to allow me to use the O-ring to secure the stereo jack, so I ended up mounting in the door to the non-working tape deck. Thought about boring deeper in the back of the plastic, but was worried I'd crack the face plate. Oh, make certain you take both the top and bottom plates off before removing the face plate. They are hooked firmly into the plastic of the face plate in several spots. Also swapped crackly paper original dash speakers with a new pair of Kenwoods.