Hello together, after which my 1977 Lincoln Mark V has a 8 track radio in it I cleaned and adjusted the whole sound head story times and now the part goes again and sounds so bad. Come still 4 new speakers in and see how then the sound is. I bought now a 8 track recorder for at home and now play my first blank tape. see appendix. Now I would be interested who has all this a device in the US Car and who has this also more or weni ger benutzt ? Greeting from South Germany