Thanks, but I never changed the radio unit itself. I forget which one it is but original to a 2000 E38 750 with DSP. It has the thick gray wire which is the antenna, and the thinner wire which I used to think was the antenna. I know there are two amplifiers. One in each C pillar. That's even before I installed the TV module and added the little amps into each C pillar.
What I have done for now is simply unscrew the gray antenna lead from the main diversity amp on the drivers side and attached a regular mast antenna and it's laying down on the back deck. Seems to be much better reception so that would indicate the amp(s) are shot.

• e38 poor reception - riboater 2008-02-02 20:01:13 (129 views)
  • Did you change the -radio- antenna amplifier? - kiwijochen 2008-02-09 15:48:53 (145 views)
    • Re: Did you change the -radio- antenna amplifier? - riboater 2008-02-09 19:12:47 (87 views)
      • Check the power to the amps - kiwijochen 2008-02-10 05:34:57 (86 views)
        • Re: Check the power to the amps (nt) - riboater 2008-05-15 10:05:23 (8 views)
        • Re: Check the power to the amps - riboater 2008-05-15 10:05:15 (8 views)